<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://jrgh.net/20191231" xmlns:jrvr="http://jrgh.net/20191231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/srt-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2019-01-31" schemaLocation="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2019-01-31" schemaLocation="https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2018-01-31" schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="jrvr-20191231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="jrvr-20191231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="jrvr-20191231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="jrvr-20191231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccountingPolicies" roleURI="http://jrgh.net/role/AccountingPolicies">
        <link:definition>2101100 - Disclosure - Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesNarrativeDetails" roleURI="http://jrgh.net/role/AccountingPoliciesNarrativeDetails">
        <link:definition>2401403 - Disclosure - Accounting Policies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesPolicies" roleURI="http://jrgh.net/role/AccountingPoliciesPolicies">
        <link:definition>2201201 - Disclosure - Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesScheduleOfEarningsPerShareDetails" roleURI="http://jrgh.net/role/AccountingPoliciesScheduleOfEarningsPerShareDetails">
        <link:definition>2401404 - Disclosure - Accounting Policies - Schedule of Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesTables" roleURI="http://jrgh.net/role/AccountingPoliciesTables">
        <link:definition>2301302 - Disclosure - Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CapitalStock" roleURI="http://jrgh.net/role/CapitalStock">
        <link:definition>2111100 - Disclosure - Capital Stock</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CapitalStockNarrativeDetails" roleURI="http://jrgh.net/role/CapitalStockNarrativeDetails">
        <link:definition>2411402 - Disclosure - Capital Stock - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CapitalStockSummaryOfCashDividendsDeclaredDetails" roleURI="http://jrgh.net/role/CapitalStockSummaryOfCashDividendsDeclaredDetails">
        <link:definition>2411403 - Disclosure - Capital Stock - Summary of Cash Dividends Declared (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CapitalStockTables" roleURI="http://jrgh.net/role/CapitalStockTables">
        <link:definition>2311301 - Disclosure - Capital Stock (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilities" roleURI="http://jrgh.net/role/CommitmentsAndContingentLiabilities">
        <link:definition>2116100 - Disclosure - Commitments and Contingent Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesNarrativeDetails" roleURI="http://jrgh.net/role/CommitmentsAndContingentLiabilitiesNarrativeDetails">
        <link:definition>2416401 - Disclosure - Commitments and Contingent Liabilities - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://jrgh.net/role/ConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParentheticals" roleURI="http://jrgh.net/role/ConsolidatedBalanceSheetsParentheticals">
        <link:definition>1001501 - Statement - Consolidated Balance Sheets (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://jrgh.net/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1004000 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlowsParenthetical" roleURI="http://jrgh.net/role/ConsolidatedStatementsOfCashFlowsParenthetical">
        <link:definition>1004001 - Statement - Consolidated Statements of Cash Flows (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfChangesInShareholdersEquity" roleURI="http://jrgh.net/role/ConsolidatedStatementsOfChangesInShareholdersEquity">
        <link:definition>1003000 - Statement - Consolidated Statements of Changes in Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfIncomeAndComprehensiveIncome" roleURI="http://jrgh.net/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncome">
        <link:definition>1002000 - Statement - Consolidated Statements of Income and Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParentheticals" roleURI="http://jrgh.net/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParentheticals">
        <link:definition>1002501 - Statement - Consolidated Statements of Income and Comprehensive Income (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Cover" roleURI="http://jrgh.net/role/Cover">
        <link:definition>0001000 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCosts" roleURI="http://jrgh.net/role/DeferredPolicyAcquisitionCosts">
        <link:definition>2103100 - Disclosure - Deferred Policy Acquisition Costs</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCostsDetails" roleURI="http://jrgh.net/role/DeferredPolicyAcquisitionCostsDetails">
        <link:definition>2403402 - Disclosure - Deferred Policy Acquisition Costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCostsDetailsCalc2" roleURI="http://jrgh.net/role/DeferredPolicyAcquisitionCostsDetailsCalc2">
        <link:definition>2403402 - Disclosure - Deferred Policy Acquisition Costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCostsTables" roleURI="http://jrgh.net/role/DeferredPolicyAcquisitionCostsTables">
        <link:definition>2303301 - Disclosure - Deferred Policy Acquisition Costs (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DividendRestrictions" roleURI="http://jrgh.net/role/DividendRestrictions">
        <link:definition>2121100 - Disclosure - Dividend Restrictions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DividendRestrictionsDetails" roleURI="http://jrgh.net/role/DividendRestrictionsDetails">
        <link:definition>2421401 - Disclosure - Dividend Restrictions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefits" roleURI="http://jrgh.net/role/EmployeeBenefits">
        <link:definition>2115100 - Disclosure - Employee Benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitsDetails" roleURI="http://jrgh.net/role/EmployeeBenefitsDetails">
        <link:definition>2415401 - Disclosure - Employee Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwards" roleURI="http://jrgh.net/role/EquityAwards">
        <link:definition>2112100 - Disclosure - Equity Awards</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwardsNarrativeDetails" roleURI="http://jrgh.net/role/EquityAwardsNarrativeDetails">
        <link:definition>2412402 - Disclosure - Equity Awards - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwardsSummaryOfAssumptionsForOptionsGrantedDetails" roleURI="http://jrgh.net/role/EquityAwardsSummaryOfAssumptionsForOptionsGrantedDetails">
        <link:definition>2412404 - Disclosure - Equity Awards - Summary of Assumptions for Options Granted (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwardsSummaryOfCompensationExpenseAndRelatedTaxBenefitDetails" roleURI="http://jrgh.net/role/EquityAwardsSummaryOfCompensationExpenseAndRelatedTaxBenefitDetails">
        <link:definition>2412406 - Disclosure - Equity Awards - Summary of Compensation Expense and Related Tax Benefit (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwardsSummaryOfOptionActivityDetails" roleURI="http://jrgh.net/role/EquityAwardsSummaryOfOptionActivityDetails">
        <link:definition>2412403 - Disclosure - Equity Awards - Summary of Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwardsSummaryOfRsuActivityDetails" roleURI="http://jrgh.net/role/EquityAwardsSummaryOfRsuActivityDetails">
        <link:definition>2412405 - Disclosure - Equity Awards - Summary of RSU Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityAwardsTables" roleURI="http://jrgh.net/role/EquityAwardsTables">
        <link:definition>2312301 - Disclosure - Equity Awards (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://jrgh.net/role/FairValueMeasurements">
        <link:definition>2119100 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsNarrativeDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>2419404 - Disclosure - Fair Value Measurements - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfAssetsMeasuredAtFairValueOnNonrecurringBasisDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfAssetsMeasuredAtFairValueOnNonrecurringBasisDetails">
        <link:definition>2419405 - Disclosure - Fair Value Measurements - Summary of Assets Measured at Fair Value on a Nonrecurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfAssetsMeasuredAtFairValueOnRecurringBasisDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfAssetsMeasuredAtFairValueOnRecurringBasisDetails">
        <link:definition>2419402 - Disclosure - Fair Value Measurements - Summary of Assets Measured at Fair Value on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfAvailableForSaleFixedMaturitySecuritiesMeasuredAtFairValueOnRecurringBasisDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfAvailableForSaleFixedMaturitySecuritiesMeasuredAtFairValueOnRecurringBasisDetails">
        <link:definition>2419403 - Disclosure - Fair Value Measurements - Summary of Available-for-Sale Fixed Maturity Securities Measured at Fair Value on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfCarryingValueAndFairValuesOfFinancialInstrumentsDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfCarryingValueAndFairValuesOfFinancialInstrumentsDetails">
        <link:definition>2419406 - Disclosure - Fair Value Measurements - Summary of the Carrying Value and Fair Values of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://jrgh.net/role/FairValueMeasurementsTables">
        <link:definition>2319301 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssets" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssets">
        <link:definition>2104100 - Disclosure - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsNarrativeDetails" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsNarrativeDetails">
        <link:definition>2404402 - Disclosure - Goodwill and Intangible Assets - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsScheduleOfFutureEstimatedAmortizationDetails" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsScheduleOfFutureEstimatedAmortizationDetails">
        <link:definition>2404404 - Disclosure - Goodwill and Intangible Assets - Schedule of Future Estimated Amortization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsScheduleOfGoodwillAndIntangibleAssetsDetails" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsScheduleOfGoodwillAndIntangibleAssetsDetails">
        <link:definition>2404403 - Disclosure - Goodwill and Intangible Assets - Schedule of Goodwill and Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsSummaryOfChangesInNetCarryingValueOfIntangibleAssetsDetails" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsSummaryOfChangesInNetCarryingValueOfIntangibleAssetsDetails">
        <link:definition>2404405 - Disclosure - Goodwill and Intangible Assets - Summary of Changes in Net Carrying Value of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibleAssetsTables" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsTables">
        <link:definition>2304301 - Disclosure - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://jrgh.net/role/IncomeTaxes">
        <link:definition>2113100 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://jrgh.net/role/IncomeTaxesNarrativeDetails">
        <link:definition>2413402 - Disclosure - Income Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesSummaryOfIncomeTaxExpenseDetails" roleURI="http://jrgh.net/role/IncomeTaxesSummaryOfIncomeTaxExpenseDetails">
        <link:definition>2413403 - Disclosure - Income Taxes - Summary of Income Tax Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesSummaryOfNetDeferredTaxAssetDetails" roleURI="http://jrgh.net/role/IncomeTaxesSummaryOfNetDeferredTaxAssetDetails">
        <link:definition>2413404 - Disclosure - Income Taxes - Summary of Net Deferred Tax Asset (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://jrgh.net/role/IncomeTaxesTables">
        <link:definition>2313301 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Investments" roleURI="http://jrgh.net/role/Investments">
        <link:definition>2102100 - Disclosure - Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsNarrativeDetails" roleURI="http://jrgh.net/role/InvestmentsNarrativeDetails">
        <link:definition>2402405 - Disclosure - Investments - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsScheduleOfAmortizedCostAndFairValueOfFixedMaturitySecuritiesDetails" roleURI="http://jrgh.net/role/InvestmentsScheduleOfAmortizedCostAndFairValueOfFixedMaturitySecuritiesDetails">
        <link:definition>2402403 - Disclosure - Investments - Schedule of Amortized Cost and Fair Value of Fixed Maturity Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsScheduleOfAvailableForSaleFixedMaturitySecuritiesDetails" roleURI="http://jrgh.net/role/InvestmentsScheduleOfAvailableForSaleFixedMaturitySecuritiesDetails">
        <link:definition>2402402 - Disclosure - Investments - Schedule of Available-for-Sale Fixed Maturity Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsScheduleOfGrossUnrealizedLossesAndFairValuesOfAvailableForSaleSecuritiesDetails" roleURI="http://jrgh.net/role/InvestmentsScheduleOfGrossUnrealizedLossesAndFairValuesOfAvailableForSaleSecuritiesDetails">
        <link:definition>2402404 - Disclosure - Investments - Schedule of Gross Unrealized Losses and Fair Values of Available-for-Sale Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsSummaryOfAvailableForSaleGrossUnrealizedGainsOrLossesByInvestmentTypeDetails" roleURI="http://jrgh.net/role/InvestmentsSummaryOfAvailableForSaleGrossUnrealizedGainsOrLossesByInvestmentTypeDetails">
        <link:definition>2402408 - Disclosure - Investments - Summary of Available-for-Sale Gross Unrealized Gains or Losses by Investment Type (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsSummaryOfNetInvestmentIncomeDetails" roleURI="http://jrgh.net/role/InvestmentsSummaryOfNetInvestmentIncomeDetails">
        <link:definition>2402406 - Disclosure - Investments - Summary of Net Investment Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsSummaryOfPrivateDebtAndEquityInvestmentsDetails" roleURI="http://jrgh.net/role/InvestmentsSummaryOfPrivateDebtAndEquityInvestmentsDetails">
        <link:definition>2402409 - Disclosure - Investments - Summary of Private Debt and Equity Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsSummaryOfRealizedGainsAndLossesOnInvestmentsDetails" roleURI="http://jrgh.net/role/InvestmentsSummaryOfRealizedGainsAndLossesOnInvestmentsDetails">
        <link:definition>2402407 - Disclosure - Investments - Summary of Realized Gains and Losses on Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsTables" roleURI="http://jrgh.net/role/InvestmentsTables">
        <link:definition>2302301 - Disclosure - Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JuniorSubordinatedDebt" roleURI="http://jrgh.net/role/JuniorSubordinatedDebt">
        <link:definition>2110100 - Disclosure - Junior Subordinated Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JuniorSubordinatedDebtNarrativeDetails" roleURI="http://jrgh.net/role/JuniorSubordinatedDebtNarrativeDetails">
        <link:definition>2410403 - Disclosure - Junior Subordinated Debt - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JuniorSubordinatedDebtSummaryOfJuniorSubordinatedDebtAndTrustPreferredSecuritiesDetails" roleURI="http://jrgh.net/role/JuniorSubordinatedDebtSummaryOfJuniorSubordinatedDebtAndTrustPreferredSecuritiesDetails">
        <link:definition>2410402 - Disclosure - Junior Subordinated Debt - Summary of Junior Subordinated Debt and Trust Preferred Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="JuniorSubordinatedDebtTables" roleURI="http://jrgh.net/role/JuniorSubordinatedDebtTables">
        <link:definition>2310301 - Disclosure - Junior Subordinated Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Leases" roleURI="http://jrgh.net/role/Leases">
        <link:definition>2106100 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesNarrativeDetails" roleURI="http://jrgh.net/role/LeasesNarrativeDetails">
        <link:definition>2406402 - Disclosure - Leases - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesSummaryOfOperatingLeaseLiabilitiesMaturitiesDetails" roleURI="http://jrgh.net/role/LeasesSummaryOfOperatingLeaseLiabilitiesMaturitiesDetails">
        <link:definition>2406403 - Disclosure - Leases - Summary of Operating Lease Liabilities Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesSummaryOfOperatingLeaseLiabilitiesMaturitiesDetailsCalc2" roleURI="http://jrgh.net/role/LeasesSummaryOfOperatingLeaseLiabilitiesMaturitiesDetailsCalc2">
        <link:definition>2406403 - Disclosure - Leases - Summary of Operating Lease Liabilities Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesTables" roleURI="http://jrgh.net/role/LeasesTables">
        <link:definition>2306301 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLoss" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLoss">
        <link:definition>2117100 - Disclosure - Other Comprehensive Income (Loss)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLossNarrativeDetails" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLossNarrativeDetails">
        <link:definition>2417403 - Disclosure - Other Comprehensive Income (Loss) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLossSummaryOfComponentsOfOtherComprehensiveLossIncomeDetails" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLossSummaryOfComponentsOfOtherComprehensiveLossIncomeDetails">
        <link:definition>2417402 - Disclosure - Other Comprehensive Income (Loss) - Summary of Components of Other Comprehensive (Loss) Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLossTables" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLossTables">
        <link:definition>2317301 - Disclosure - Other Comprehensive Income (Loss) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherOperatingExpensesAndOtherExpenses" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpenses">
        <link:definition>2114100 - Disclosure - Other Operating Expenses and Other Expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherOperatingExpensesAndOtherExpensesSummaryOfOtherExpensesDetails" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpensesSummaryOfOtherExpensesDetails">
        <link:definition>2414403 - Disclosure - Other Operating Expenses and Other Expenses - Summary of Other Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherOperatingExpensesAndOtherExpensesSummaryOfOtherOperatingExpensesDetails" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpensesSummaryOfOtherOperatingExpensesDetails">
        <link:definition>2414402 - Disclosure - Other Operating Expenses and Other Expenses - Summary of Other Operating Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherOperatingExpensesAndOtherExpensesTables" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpensesTables">
        <link:definition>2314301 - Disclosure - Other Operating Expenses and Other Expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherRelatedPartyTransactions" roleURI="http://jrgh.net/role/OtherRelatedPartyTransactions">
        <link:definition>2122100 - Disclosure - Other Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherRelatedPartyTransactionsDetails" roleURI="http://jrgh.net/role/OtherRelatedPartyTransactionsDetails">
        <link:definition>2422401 - Disclosure - Other Related Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNet" roleURI="http://jrgh.net/role/PropertyAndEquipmentNet">
        <link:definition>2105100 - Disclosure - Property and Equipment, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetDetails" roleURI="http://jrgh.net/role/PropertyAndEquipmentNetDetails">
        <link:definition>2405402 - Disclosure - Property and Equipment, Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetTables" roleURI="http://jrgh.net/role/PropertyAndEquipmentNetTables">
        <link:definition>2305301 - Disclosure - Property and Equipment, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Reinsurance" roleURI="http://jrgh.net/role/Reinsurance">
        <link:definition>2108100 - Disclosure - Reinsurance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceNarrativeDetails" roleURI="http://jrgh.net/role/ReinsuranceNarrativeDetails">
        <link:definition>2408402 - Disclosure - Reinsurance - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceSummaryOfPremiumsWrittenPremiumsEarnedAndLossesAndLossAdjustmentExpensesDetails" roleURI="http://jrgh.net/role/ReinsuranceSummaryOfPremiumsWrittenPremiumsEarnedAndLossesAndLossAdjustmentExpensesDetails">
        <link:definition>2408403 - Disclosure - Reinsurance - Summary of Premiums Written, Premiums Earned, and Losses and Loss Adjustment Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceTables" roleURI="http://jrgh.net/role/ReinsuranceTables">
        <link:definition>2308301 - Disclosure - Reinsurance (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpenses" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpenses">
        <link:definition>2107100 - Disclosure - Reserve for Losses and Loss Adjustment Expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesAverageAnnualPercentagePayoutsOfIncurredClaimsDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesAverageAnnualPercentagePayoutsOfIncurredClaimsDetails">
        <link:definition>2407407 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Average Annual Percentage Payouts of Incurred Claims (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesCumulativePaidLossesAndLossAdjustmentExpensesDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesCumulativePaidLossesAndLossAdjustmentExpensesDetails">
        <link:definition>2407405 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Cumulative Paid Losses and Loss Adjustment Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesIbnrLiabilitiesAndClaimsFrequencyDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesIbnrLiabilitiesAndClaimsFrequencyDetails">
        <link:definition>2407408 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - IBNR Liabilities and Claims Frequency (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesIncurredLossesAndLossAdjustmentExpensesDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesIncurredLossesAndLossAdjustmentExpensesDetails">
        <link:definition>2407404 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Incurred Losses and Loss Adjustment Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesNarrativeDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesNarrativeDetails">
        <link:definition>2407403 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesReserveForLossesAndLossAdjustmentExpensesNetOfReinsuranceDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesReserveForLossesAndLossAdjustmentExpensesNetOfReinsuranceDetails">
        <link:definition>2407402 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Reserve for Losses and Loss Adjustment Expenses, Net of Reinsurance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesReservesForLossesAndLossAdjustmentExpensesDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesReservesForLossesAndLossAdjustmentExpensesDetails">
        <link:definition>2407406 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Reserves for Losses and Loss Adjustment Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReserveForLossesAndLossAdjustmentExpensesTables" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesTables">
        <link:definition>2307301 - Disclosure - Reserve for Losses and Loss Adjustment Expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleISummaryOfInvestmentsOtherThanInvestmentsInRelatedParties" roleURI="http://jrgh.net/role/ScheduleISummaryOfInvestmentsOtherThanInvestmentsInRelatedParties">
        <link:definition>2125100 - Schedule - SCHEDULE I - Summary of Investments - Other than Investments in Related Parties</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleISummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesDetails" roleURI="http://jrgh.net/role/ScheduleISummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesDetails">
        <link:definition>2425401 - Schedule - SCHEDULE I - Summary of Investments - Other than Investments in Related Parties (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiCondensedFinancialInformationOfRegistrant" roleURI="http://jrgh.net/role/ScheduleIiCondensedFinancialInformationOfRegistrant">
        <link:definition>2126100 - Schedule - SCHEDULE II - Condensed Financial Information of Registrant</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiCondensedFinancialInformationOfRegistrantDetails" roleURI="http://jrgh.net/role/ScheduleIiCondensedFinancialInformationOfRegistrantDetails">
        <link:definition>2426401 - Schedule - SCHEDULE II - Condensed Financial Information of Registrant (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiCondensedFinancialInformationOfRegistrantDetails1" roleURI="http://jrgh.net/role/ScheduleIiCondensedFinancialInformationOfRegistrantDetails1">
        <link:definition>2426402 - Schedule - SCHEDULE II - Condensed Financial Information of Registrant (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiCondensedFinancialInformationOfRegistrantDetails2" roleURI="http://jrgh.net/role/ScheduleIiCondensedFinancialInformationOfRegistrantDetails2">
        <link:definition>2426403 - Schedule - SCHEDULE II - Condensed Financial Information of Registrant (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiCondensedFinancialInformationOfRegistrantNarrativeDetails" roleURI="http://jrgh.net/role/ScheduleIiCondensedFinancialInformationOfRegistrantNarrativeDetails">
        <link:definition>2426404 - Schedule - SCHEDULE II - Condensed Financial Information of Registrant - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiiSupplementaryInsuranceInformation" roleURI="http://jrgh.net/role/ScheduleIiiSupplementaryInsuranceInformation">
        <link:definition>2127100 - Schedule - SCHEDULE III - Supplementary Insurance Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiiSupplementaryInsuranceInformationDetails" roleURI="http://jrgh.net/role/ScheduleIiiSupplementaryInsuranceInformationDetails">
        <link:definition>2427401 - Schedule - SCHEDULE III - Supplementary Insurance Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIvReinsurance" roleURI="http://jrgh.net/role/ScheduleIvReinsurance">
        <link:definition>2128100 - Schedule - SCHEDULE IV - Reinsurance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIvReinsuranceDetails" roleURI="http://jrgh.net/role/ScheduleIvReinsuranceDetails">
        <link:definition>2428401 - Schedule - SCHEDULE IV - Reinsurance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleVValuationAndQualifyingAccounts" roleURI="http://jrgh.net/role/ScheduleVValuationAndQualifyingAccounts">
        <link:definition>2129100 - Schedule - SCHEDULE V - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleVValuationAndQualifyingAccountsDetails" roleURI="http://jrgh.net/role/ScheduleVValuationAndQualifyingAccountsDetails">
        <link:definition>2429401 - Schedule - SCHEDULE V - Valuation and Qualifying Accounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleViSupplementaryInformationConcerningPropertyCasualtyInsuranceOperations" roleURI="http://jrgh.net/role/ScheduleViSupplementaryInformationConcerningPropertyCasualtyInsuranceOperations">
        <link:definition>2130100 - Schedule - SCHEDULE VI - Supplementary Information Concerning Property Casualty Insurance Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleViSupplementaryInformationConcerningPropertyCasualtyInsuranceOperationsDetails" roleURI="http://jrgh.net/role/ScheduleViSupplementaryInformationConcerningPropertyCasualtyInsuranceOperationsDetails">
        <link:definition>2430401 - Schedule - SCHEDULE VI - Supplementary Information Concerning Property Casualty Insurance Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://jrgh.net/role/SegmentInformation">
        <link:definition>2118100 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationGrossWrittenPremiumsDetails" roleURI="http://jrgh.net/role/SegmentInformationGrossWrittenPremiumsDetails">
        <link:definition>2418405 - Disclosure - Segment Information - Gross Written Premiums (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://jrgh.net/role/SegmentInformationNarrativeDetails">
        <link:definition>2418402 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationReconciliationOfUnderwritingProfitLossOfInsuranceSegmentsDetails" roleURI="http://jrgh.net/role/SegmentInformationReconciliationOfUnderwritingProfitLossOfInsuranceSegmentsDetails">
        <link:definition>2418404 - Disclosure - Segment Information - Reconciliation of Underwriting Profit (Loss) of Insurance Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleOfSegmentReportingInformationDetails" roleURI="http://jrgh.net/role/SegmentInformationScheduleOfSegmentReportingInformationDetails">
        <link:definition>2418403 - Disclosure - Segment Information - Schedule of Segment Reporting Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://jrgh.net/role/SegmentInformationTables">
        <link:definition>2318301 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorDebt" roleURI="http://jrgh.net/role/SeniorDebt">
        <link:definition>2109100 - Disclosure - Senior Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorDebtDetails" roleURI="http://jrgh.net/role/SeniorDebtDetails">
        <link:definition>2409401 - Disclosure - Senior Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatutoryMatters" roleURI="http://jrgh.net/role/StatutoryMatters">
        <link:definition>2120100 - Disclosure - Statutory Matters</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatutoryMattersNarrativeDetails" roleURI="http://jrgh.net/role/StatutoryMattersNarrativeDetails">
        <link:definition>2420403 - Disclosure - Statutory Matters - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatutoryMattersScheduleOfStatutoryAccountingDetails" roleURI="http://jrgh.net/role/StatutoryMattersScheduleOfStatutoryAccountingDetails">
        <link:definition>2420402 - Disclosure - Statutory Matters - Schedule of Statutory Accounting (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatutoryMattersTables" roleURI="http://jrgh.net/role/StatutoryMattersTables">
        <link:definition>2320301 - Disclosure - Statutory Matters (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://jrgh.net/role/SubsequentEvents">
        <link:definition>2123100 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventsDetails" roleURI="http://jrgh.net/role/SubsequentEventsDetails">
        <link:definition>2423401 - Disclosure - Subsequent Events (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedSelectedQuarterlyFinancialData" roleURI="http://jrgh.net/role/UnauditedSelectedQuarterlyFinancialData">
        <link:definition>2124100 - Disclosure - Unaudited Selected Quarterly Financial Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedSelectedQuarterlyFinancialDataDetails" roleURI="http://jrgh.net/role/UnauditedSelectedQuarterlyFinancialDataDetails">
        <link:definition>2424402 - Disclosure - Unaudited Selected Quarterly Financial Data (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedSelectedQuarterlyFinancialDataTables" roleURI="http://jrgh.net/role/UnauditedSelectedQuarterlyFinancialDataTables">
        <link:definition>2324301 - Disclosure - Unaudited Selected Quarterly Financial Data (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="jrvr_A2013FacilityMember" name="A2013FacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_A2017FacilityMember" name="A2017FacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AccidentYears20162015and2014Member" name="AccidentYears20162015and2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AccountingPoliciesLineItems" name="AccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AccountingPoliciesTable" name="AccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AcquiredIntangibleAssetsLineItems" name="AcquiredIntangibleAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AgencyOneMember" name="AgencyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AgencyTwoMember" name="AgencyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AgreementAxis" name="AgreementAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AgreementDomain" name="AgreementDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AlliedHealthMember" name="AlliedHealthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_AmortizationOfPolicyAcquisitionCosts" name="AmortizationOfPolicyAcquisitionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_AssetsDepositedForSecuringLettersOfCredit" name="AssetsDepositedForSecuringLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_AssumedReinsurancePremiumsPolicyTextBlock" name="AssumedReinsurancePremiumsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BankHoldingCompaniesMember" name="BankHoldingCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BankHoldingCompanyMember" name="BankHoldingCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BankLoanParticipationsAbstract" name="BankLoanParticipationsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_BankLoanParticipationsGrossRealizedGain" name="BankLoanParticipationsGrossRealizedGain" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_BankLoanParticipationsGrossRealizedLoss" name="BankLoanParticipationsGrossRealizedLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_BankLoanParticipationsNetGainLoss" name="BankLoanParticipationsNetGainLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BrokerFourMember" name="BrokerFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BrokerOneMember" name="BrokerOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BrokerRelationshipsMember" name="BrokerRelationshipsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BrokerThreeMember" name="BrokerThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BrokerTwoMember" name="BrokerTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_CasualtyReinsuranceMember" name="CasualtyReinsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_CombinedEnhancedCapitalRequirement" name="CombinedEnhancedCapitalRequirement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_CommercialAutoMember" name="CommercialAutoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_CommercialMortgageAndAssetBackedAmortizedCost" name="CommercialMortgageAndAssetBackedAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommercialMortgageAndAssetBackedFairValue" name="CommercialMortgageAndAssetBackedFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommitmentToLend" name="CommitmentToLend" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommitmenttoInvestmentInLimitedPartnership" name="CommitmenttoInvestmentInLimitedPartnership" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommonShareEquivalentsEarningsPerShare" name="CommonShareEquivalentsEarningsPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ConsolidatedGrossWrittenPremiumsPercentage" name="ConsolidatedGrossWrittenPremiumsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ConsultingAgreementMember" name="ConsultingAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ContingentLiabilitiesLineItems" name="ContingentLiabilitiesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ContingentLiabilitiesTable" name="ContingentLiabilitiesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_CreditRiskReinsurerOneMember" name="CreditRiskReinsurerOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_CreditRiskReinsurerThreeMember" name="CreditRiskReinsurerThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_CreditRiskReinsurerTwoMember" name="CreditRiskReinsurerTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DateOfDeclarationAxis" name="DateOfDeclarationAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DateOfDeclarationDomain" name="DateOfDeclarationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DateOfDeclarationNovember12017Member" name="DateOfDeclarationNovember12017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DateOfDeclarationNovember12017OneMember" name="DateOfDeclarationNovember12017OneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_DebtInstrumentDeferredInterestOptionMaximumTerm" name="DebtInstrumentDeferredInterestOptionMaximumTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DebtandEquitySecuritiesMember" name="DebtandEquitySecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_DeferredPolicyAcquisitionCost1" name="DeferredPolicyAcquisitionCost1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_DeferredPolicyAcquisitionCostsUnderwritingAndOtherIssueExpenses" name="DeferredPolicyAcquisitionCostsUnderwritingAndOtherIssueExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DevelopmentOnPriorYearLossReservesAbstract" name="DevelopmentOnPriorYearLossReservesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_DividendDistributionsToIntermediateHoldingCompany" name="DividendDistributionsToIntermediateHoldingCompany" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_DividendLimitationsPercentageOfStatutorySurplus" name="DividendLimitationsPercentageOfStatutorySurplus" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_DividendWithholdingTaxRemittance" name="DividendWithholdingTaxRemittance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ElectronicDataProcessingHardwareAndSoftwareMember" name="ElectronicDataProcessingHardwareAndSoftwareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_EnergyMember" name="EnergyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_EnvironmentalMember" name="EnvironmentalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_EquitySecuritiesChangesinFairValue" name="EquitySecuritiesChangesinFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ExcessAndSurplusLinesMember" name="ExcessAndSurplusLinesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ExcessCasualtyMember" name="ExcessCasualtyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ExcessPropertyMember" name="ExcessPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ExciseTaxesPaid" name="ExciseTaxesPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ExcludingCommercialAutoMember" name="ExcludingCommercialAutoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_FaceValueOfTrustPrefferedSecurties" name="FaceValueOfTrustPrefferedSecurties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_FairValueofInvestmentsonDepositswithStateInsuranceDepartments" name="FairValueofInvestmentsonDepositswithStateInsuranceDepartments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_FeeIncome" name="FeeIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_FinancingReceivableGainonRepayment" name="FinancingReceivableGainonRepayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_FranklinHoldingsIiBermudaCapitalTrustIMember" name="FranklinHoldingsIiBermudaCapitalTrustIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_FrontingandProgramsMember" name="FrontingandProgramsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_GeneralCasualtyMember" name="GeneralCasualtyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_GrossWrittenPremiumsPercentage" name="GrossWrittenPremiumsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ImpairedBankLoanParticipationsHeldForInvestment" name="ImpairedBankLoanParticipationsHeldForInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_ImpairedBankLoansMember" name="ImpairedBankLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_IncomeTaxReconciliationFederalIncomeTaxExpense" name="IncomeTaxReconciliationFederalIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_IncomeTaxReconciliationUsDividendWithholdingTax" name="IncomeTaxReconciliationUsDividendWithholdingTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_IndividualRiskWorkersCompensationMember" name="IndividualRiskWorkersCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_InsuredOneMember" name="InsuredOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_InvestmentInBankHoldingCompanyMember" name="InvestmentInBankHoldingCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_InvestmentInLlcMember" name="InvestmentInLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverCapitalTrustIMember" name="JamesRiverCapitalTrustIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverCapitalTrustIiMember" name="JamesRiverCapitalTrustIiMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverCapitalTrustIiiMember" name="JamesRiverCapitalTrustIiiMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverCapitalTrustIvMember" name="JamesRiverCapitalTrustIvMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverGroupIncMember" name="JamesRiverGroupIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverGroupSeniorDebtMember" name="JamesRiverGroupSeniorDebtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JrgReMember" name="JrgReMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JrgReinsuranceCompanyLtdMember" name="JrgReinsuranceCompanyLtdMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JuniorSubordinatedDebtAxis" name="JuniorSubordinatedDebtAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JuniorSubordinatedDebtDomain" name="JuniorSubordinatedDebtDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_LegalTaxAndOtherProfessionalServicesExpense" name="LegalTaxAndOtherProfessionalServicesExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_LetterOfCredit75MillionMember" name="LetterOfCredit75MillionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_LetterOfCreditFacilityAmount" name="LetterOfCreditFacilityAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_LiabilityForClaimsAndClaimsAdjustmentExpenseTextBlock" name="LiabilityForClaimsAndClaimsAdjustmentExpenseTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_LifeSciencesMember" name="LifeSciencesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_LoanAndAdvancesCarryingValue" name="LoanAndAdvancesCarryingValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_LoansfromIssuerExperiencingLiquidityConcernsMember" name="LoansfromIssuerExperiencingLiquidityConcernsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_LongTermIncentivePlan2014Member" name="LongTermIncentivePlan2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ManufacturersAndContractorsMember" name="ManufacturersAndContractorsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_MedicalProfessionalsMember" name="MedicalProfessionalsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_MinimumLiquidityRatio" name="MinimumLiquidityRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_NonEmployeeDirectorIncentivePlan2014Member" name="NonEmployeeDirectorIncentivePlan2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_NonemployeeDirectorsMember" name="NonemployeeDirectorsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_NotesReceivable" name="NotesReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberOfImpairedLoans" name="NumberOfImpairedLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberOfInsuranceCompanies" name="NumberOfInsuranceCompanies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberOfIssuersWithImpairedLoans" name="NumberOfIssuersWithImpairedLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberOfParticipationBankLoansOnNonaccrualStatus" name="NumberOfParticipationBankLoansOnNonaccrualStatus" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberOfUnderwritingDivisions" name="NumberOfUnderwritingDivisions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_NumberofAgencies" name="NumberofAgencies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberofBrokers" name="NumberofBrokers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberofInsured" name="NumberofInsured" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberofLetterofCreditFacilities" name="NumberofLetterofCreditFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberofUnaffiliatedCedingCompanies" name="NumberofUnaffiliatedCedingCompanies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_OtherExpenseMiscellaneous" name="OtherExpenseMiscellaneous" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherIncomeAndExpenses" name="OtherIncomeAndExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherIncomePolicyTextBlock" name="OtherIncomePolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherInvestedAssetTableTextBlock" name="OtherInvestedAssetTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherInvestedAssetsPolicyTextBlock" name="OtherInvestedAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_OtherOperatingExpensesAndOtherExpensesAbstract" name="OtherOperatingExpensesAndOtherExpensesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherOperatingExpensesAndOtherExpensesTextBlock" name="OtherOperatingExpensesAndOtherExpensesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherOperatingExpensesOfCorporateAndOtherSegment" name="OtherOperatingExpensesOfCorporateAndOtherSegment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OutstandingLossesAndLossAdjustmentExpensesAssumedFromInvoluntaryWorkersCompensationPools" name="OutstandingLossesAndLossAdjustmentExpensesAssumedFromInvoluntaryWorkersCompensationPools" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_PaymentOfFederalExciseTaxes" name="PaymentOfFederalExciseTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PaymentToAcquireBankLoanParticipations" name="PaymentToAcquireBankLoanParticipations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PaymentsToAcquirePrivateSubordinatedDebt" name="PaymentsToAcquirePrivateSubordinatedDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_PaymentsforProceedsfromUnsettledInvestmentsNet" name="PaymentsforProceedsfromUnsettledInvestmentsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PercentageOfAvailableForSaleDebtSecurities" name="PercentageOfAvailableForSaleDebtSecurities" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_PercentageOfDividendDistributionTax" name="PercentageOfDividendDistributionTax" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PercentageOfDividendWithholdingTax" name="PercentageOfDividendWithholdingTax" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PercentageOfDividendWithholdingTaxForDistributions" name="PercentageOfDividendWithholdingTaxForDistributions" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PercentageOfExciseTaxOnReinsurancePremiumsPaid" name="PercentageOfExciseTaxOnReinsurancePremiumsPaid" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PolicyAcquisitionCostsDeferred" name="PolicyAcquisitionCostsDeferred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PrepaidReinsurancePremiumsCededPercentageOfTotalBalance" name="PrepaidReinsurancePremiumsCededPercentageOfTotalBalance" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_ProceedsFromBankLoanParticipations" name="ProceedsFromBankLoanParticipations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ProceedsFromMaturitiesAndRepaymentsOfOtherInvestedAssets" name="ProceedsFromMaturitiesAndRepaymentsOfOtherInvestedAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ProceedsFromMaturitiesOfBankLoanParticipations" name="ProceedsFromMaturitiesOfBankLoanParticipations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ProceedsFromOtherInvestedAssetReturnOfCapital" name="ProceedsFromOtherInvestedAssetReturnOfCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ProfessionalLiabilityMember" name="ProfessionalLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_PuertoRicoLoanMember" name="PuertoRicoLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_RaiserMember" name="RaiserMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_RealizedGainLossOnChangesInFairValueOfImpairedBankLoans" name="RealizedGainLossOnChangesInFairValueOfImpairedBankLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_RedeemablePreferredStockAmortizedCost" name="RedeemablePreferredStockAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_RedeemablePreferredStockFairValue" name="RedeemablePreferredStockFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_ReinsuranceRecoverablesOnUnpaidLossesPercentageOfTotalBalance" name="ReinsuranceRecoverablesOnUnpaidLossesPercentageOfTotalBalance" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_RenewableEnergyBridgeFinancingNotesMember" name="RenewableEnergyBridgeFinancingNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_RenewableEnergyLlcsMember" name="RenewableEnergyLlcsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ResidentialMortgageBackedAmortizedCost" name="ResidentialMortgageBackedAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_ResidentialMortgageBackedFairValue" name="ResidentialMortgageBackedFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_RestrictedStockUnitDividendEquivalents" name="RestrictedStockUnitDividendEquivalents" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ScheduleOfAcquiredIntangibleAssetsTable" name="ScheduleOfAcquiredIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ScheduleOfIncurredButNotReportedLiabilitiesAndClaimsFrequencyTableTextBlock" name="ScheduleOfIncurredButNotReportedLiabilitiesAndClaimsFrequencyTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShareBasedArrangementbyShareBasedAwardOptionContractualLife" name="ShareBasedArrangementbyShareBasedAwardOptionContractualLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAuthorized" name="SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAuthorized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_ShortDurationInsuranceContractAccidentYears2011Through2016Member" name="ShortDurationInsuranceContractAccidentYears2011Through2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ShortDurationInsuranceContractAccidentYearsPriorto2018Member" name="ShortDurationInsuranceContractAccidentYearsPriorto2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedGains" name="ShortTermInvestmentsAndOtherGrossRealizedGains" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedGainsLosses" name="ShortTermInvestmentsAndOtherGrossRealizedGainsLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedLosses" name="ShortTermInvestmentsAndOtherGrossRealizedLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ShortdurationInsuranceContractsAccidentYears2010Through2013Member" name="ShortdurationInsuranceContractsAccidentYears2010Through2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ShortdurationInsuranceContractsAccidentYears2010Through2015Member" name="ShortdurationInsuranceContractsAccidentYears2010Through2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ShortdurationInsuranceContractsAccidentYears2016and2017Member" name="ShortdurationInsuranceContractsAccidentYears2016and2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ShortdurationInsuranceContractsAccidentYearsAtLeastFourYearsOldMember" name="ShortdurationInsuranceContractsAccidentYearsAtLeastFourYearsOldMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_SmallBusinessMember" name="SmallBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_SpecialtyAdmittedInsuranceMember" name="SpecialtyAdmittedInsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_SportsAndEntertainmentMember" name="SportsAndEntertainmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_StatutoryMattersAbstract" name="StatutoryMattersAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_StatutoryMattersTextBlock" name="StatutoryMattersTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_TrustCommonStock" name="TrustCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_UnaffiliatedCedingCompanyOneMember" name="UnaffiliatedCedingCompanyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_UnaffiliatedCedingCompanyThreeMember" name="UnaffiliatedCedingCompanyThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_UnaffiliatedCedingCompanyTwoMember" name="UnaffiliatedCedingCompanyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_UnderwritingProfitLoss" name="UnderwritingProfitLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_UnderwritingProfitLossOfOperatingSegments" name="UnderwritingProfitLossOfOperatingSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_VestingOfRestrictedStockUnitsAndRelatedExcessTaxBenefitsShares" name="VestingOfRestrictedStockUnitsAndRelatedExcessTaxBenefitsShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_VestingOfRestrictedStockUnitsAndRelatedExcessTaxBenefitsValue" name="VestingOfRestrictedStockUnitsAndRelatedExcessTaxBenefitsValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_VestingOfRestrictedStockUnitsShares" name="VestingOfRestrictedStockUnitsShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_VestingOfRestrictedStockUnitsValue" name="VestingOfRestrictedStockUnitsValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
</xsd:schema>
