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  <xs:element id="jrvr_JamesRiverCapitalTrustIvMember" abstract="true" name="JamesRiverCapitalTrustIvMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_PreferredStockDividendPaymentRateVariableSpread" abstract="false" name="PreferredStockDividendPaymentRateVariableSpread" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_ProceedsFromMaturitiesAndRepaymentsOfOtherInvestedAssets" abstract="false" name="ProceedsFromMaturitiesAndRepaymentsOfOtherInvestedAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_NumberOfEquitySecuritiesTransferred" abstract="false" name="NumberOfEquitySecuritiesTransferred" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_IncreaseDecreaseInRestrictedCashEquivalents" abstract="false" name="IncreaseDecreaseInRestrictedCashEquivalents" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShortTermInvestmentsAndOtherRealizedGainsLosses" abstract="false" name="ShortTermInvestmentsAndOtherRealizedGainsLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ExcludingCommercialAutoMember" abstract="true" name="ExcludingCommercialAutoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ProceedsFromMaturitiesOfBankLoanParticipations" abstract="false" name="ProceedsFromMaturitiesOfBankLoanParticipations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_LiabilityForClaimsAndClaimsAdjustmentExpenseTextBlock" abstract="false" name="LiabilityForClaimsAndClaimsAdjustmentExpenseTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="jrvr_StandardPoorsBelowBBBRatingMember" abstract="true" name="StandardPoorsBelowBBBRatingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_GeneralCasualtyMember" abstract="true" name="GeneralCasualtyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationCededPremiumsWritten" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationCededPremiumsWritten" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ReinsuranceTransactionDomain" abstract="true" name="ReinsuranceTransactionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_PercentageOfDividendWithholdingTax" abstract="false" name="PercentageOfDividendWithholdingTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_IndemnityTrustAndLossFundTrustMember" abstract="true" name="IndemnityTrustAndLossFundTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_AgencyOneMember" abstract="true" name="AgencyOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_GainLossOnInvestmentsIncludingDiscontinuedOperations" abstract="false" name="GainLossOnInvestmentsIncludingDiscontinuedOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_FairValueOptionLoansHeldAsAssetsAggregateFairValuePolicyPolicyTextBlock" abstract="false" name="FairValueOptionLoansHeldAsAssetsAggregateFairValuePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="jrvr_A2017FacilityMember" abstract="true" name="A2017FacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ResidentialMortgageBackedAmortizedCost" abstract="false" name="ResidentialMortgageBackedAmortizedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_RasierAndAlekaMember" abstract="true" name="RasierAndAlekaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NonemployeeDirectorsMember" abstract="true" name="NonemployeeDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationDeferredPolicyAcquisitionCosts" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationDeferredPolicyAcquisitionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_JamesRiverCapitalTrustIIMember" abstract="true" name="JamesRiverCapitalTrustIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_JamesRiverGroupIncMember" abstract="true" name="JamesRiverGroupIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_RenewableEnergyBridgeFinancingNotesMember" abstract="true" name="RenewableEnergyBridgeFinancingNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_FaceValueOfTrustPrefferedSecurties" abstract="false" name="FaceValueOfTrustPrefferedSecurties" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DepreciationDepletionAmortizationAndAccretionExpense" abstract="false" name="DepreciationDepletionAmortizationAndAccretionExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DividendDistributionsToIntermediateHoldingCompany" abstract="false" name="DividendDistributionsToIntermediateHoldingCompany" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_PaymentsOfContributionsToAffiliates" abstract="false" name="PaymentsOfContributionsToAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationTotalInvestedAssets" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationTotalInvestedAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CommercialMortgageAndAssetBackedFairValue" abstract="false" name="CommercialMortgageAndAssetBackedFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_VariousLLCsMember" abstract="true" name="VariousLLCsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsAbstract" abstract="true" name="BankLoanParticipationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_BankHoldingCompaniesMember" abstract="true" name="BankHoldingCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationNetInvestmentIncome" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationNetInvestmentIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ReinsuranceAggregateCoverageLimitAmountRemaining" abstract="false" name="ReinsuranceAggregateCoverageLimitAmountRemaining" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_InvestmentInLlcMember" abstract="true" name="InvestmentInLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsGrossRealizedGain" abstract="false" name="BankLoanParticipationsGrossRealizedGain" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CommonStockDividendPerShareCashPaymentsThreshold" abstract="false" name="CommonStockDividendPerShareCashPaymentsThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="jrvr_CreditRiskReinsurerTwoMember" abstract="true" name="CreditRiskReinsurerTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_A2013FacilityMember" abstract="true" name="A2013FacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_PRSUMember" abstract="true" name="PRSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_TrustCommonStock" abstract="false" name="TrustCommonStock" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ContingentLiabilitiesTable" abstract="true" name="ContingentLiabilitiesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_LifeSciencesMember" abstract="true" name="LifeSciencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_IndividualRiskWorkersCompensationMember" abstract="true" name="IndividualRiskWorkersCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_AccountingPoliciesTable" abstract="true" name="AccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_LetterOfCreditFacilityAmount" abstract="false" name="LetterOfCreditFacilityAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CommitmentToInvestInNotesReceivable" abstract="false" name="CommitmentToInvestInNotesReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_BrokerRelationshipsMember" abstract="true" name="BrokerRelationshipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ProfessionalLiabilityMember" abstract="true" name="ProfessionalLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_SellingAgreementPreCloseDividendForgiveness" abstract="false" name="SellingAgreementPreCloseDividendForgiveness" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_JamesRiverGroupSeniorDebtMember" abstract="true" name="JamesRiverGroupSeniorDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsLapsedInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsLapsedInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="jrvr_AlekaMember" abstract="true" name="AlekaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NotesReceivableTwoMember" abstract="true" name="NotesReceivableTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="jrvr_ExcessAndSurplusLinesMember" abstract="true" name="ExcessAndSurplusLinesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_PolicyAcquisitionCostsDeferred" abstract="false" name="PolicyAcquisitionCostsDeferred" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_NumberOfUnderlyingProjectsSold" abstract="false" name="NumberOfUnderlyingProjectsSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_ReinsurancePremium" abstract="false" name="ReinsurancePremium" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_PriorYearClaimsAndClaimsAdjustmentExpenseRetroactiveReinsurance" abstract="false" name="PriorYearClaimsAndClaimsAdjustmentExpenseRetroactiveReinsurance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_NumberofAgencies" abstract="false" name="NumberofAgencies" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_TaxCutsAndJobsActChangeInTaxRateDeferredTaxAssetIncomeTaxExpense" abstract="false" name="TaxCutsAndJobsActChangeInTaxRateDeferredTaxAssetIncomeTaxExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationRevenueAbstract" abstract="true" name="DisposalGroupIncludingDiscontinuedOperationRevenueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_PaymentsforProceedsfromUnsettledInvestmentsNet" abstract="false" name="PaymentsforProceedsfromUnsettledInvestmentsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShortDurationInsuranceContractAccidentYearsPriorTo2020Member" abstract="true" name="ShortDurationInsuranceContractAccidentYearsPriorTo2020Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ThirdPartyReinsuredsMember" abstract="true" name="ThirdPartyReinsuredsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_AlliedHealthMember" abstract="true" name="AlliedHealthMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_FrontingandProgramsMember" abstract="true" name="FrontingandProgramsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ExcessPropertyMember" abstract="true" name="ExcessPropertyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationEquitySecuritiesFVNI" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationEquitySecuritiesFVNI" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_BrokerOneMember" abstract="true" name="BrokerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NumberOfLetterCreditFacilities" abstract="false" name="NumberOfLetterCreditFacilities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_ShareBasedArrangementbyShareBasedAwardOptionContractualLife" abstract="false" name="ShareBasedArrangementbyShareBasedAwardOptionContractualLife" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="jrvr_PrivateDebtMember" abstract="true" name="PrivateDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="jrvr_NotesReceivableOneMember" abstract="true" name="NotesReceivableOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="jrvr_FortitudeReinsuranceMember" abstract="true" name="FortitudeReinsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NumberOfEquitySecuritiesHeld" abstract="false" name="NumberOfEquitySecuritiesHeld" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="jrvr_PreferredStockDiscountRatePercentage" abstract="false" name="PreferredStockDiscountRatePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_BrokerThreeMember" abstract="true" name="BrokerThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_OtherOperatingExpensesOfCorporateAndOtherSegment" abstract="false" name="OtherOperatingExpensesOfCorporateAndOtherSegment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInUnearnedPremiumsNet" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInUnearnedPremiumsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ExcessCasualtyMember" abstract="true" name="ExcessCasualtyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_OtherInvestedAssetsPolicyTextBlock" abstract="false" name="OtherInvestedAssetsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="jrvr_IndemnityTrustMember" abstract="true" name="IndemnityTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NetCashProvidedByUsedInOperatingActivitiesExcludingChangeInCollateralFunds" abstract="false" name="NetCashProvidedByUsedInOperatingActivitiesExcludingChangeInCollateralFunds" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_MedicalProfessionalsMember" abstract="true" name="MedicalProfessionalsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationPrepaidReinsurancePremiums" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationPrepaidReinsurancePremiums" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_EffectiveIncomeTaxRateReconciliationProvisionToReturnAndAmendedTaxReturnsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationProvisionToReturnAndAmendedTaxReturnsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationPremiumsAndOtherReceivablesNet" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationPremiumsAndOtherReceivablesNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_AccountingPoliciesLineItems" abstract="true" name="AccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_PreferredStockConvertibleTerm" abstract="false" name="PreferredStockConvertibleTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="jrvr_TaxCutsAndJobsActChangeInTaxRateDeferredTaxAssetIncomeTaxExpensePerYear" abstract="false" name="TaxCutsAndJobsActChangeInTaxRateDeferredTaxAssetIncomeTaxExpensePerYear" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAuthorized" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="jrvr_StockOptionsRestrictedStockUnitsAndConvertiblePreferredStockMember" abstract="true" name="StockOptionsRestrictedStockUnitsAndConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_OtherInvestedAssetTableTextBlock" abstract="false" name="OtherInvestedAssetTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationWriteDown" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationWriteDown" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_RetroactiveReinsuranceBenefitRecognized" abstract="false" name="RetroactiveReinsuranceBenefitRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsUnrealizedLossesCreditRelatedImpairments" abstract="false" name="BankLoanParticipationsUnrealizedLossesCreditRelatedImpairments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_SmallBusinessMember" abstract="true" name="SmallBusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutForAchievementThreshold" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutForAchievementThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_ScheduleOfIncurredButNotReportedLiabilitiesAndClaimsFrequencyTableTextBlock" abstract="false" name="ScheduleOfIncurredButNotReportedLiabilitiesAndClaimsFrequencyTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="jrvr_DebtInstrumentDeferredInterestOptionMaximumTerm" abstract="false" name="DebtInstrumentDeferredInterestOptionMaximumTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="jrvr_CashEquivalentCollateralHeldInTrustArrangement" abstract="false" name="CashEquivalentCollateralHeldInTrustArrangement" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationExpensesAbstract" abstract="true" name="DisposalGroupIncludingDiscontinuedOperationExpensesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_PreferredStockDividendTradingDays" abstract="false" name="PreferredStockDividendTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_ManagementLiabilityMember" abstract="true" name="ManagementLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="jrvr_JamesRiverCapitalTrustIIIMember" abstract="true" name="JamesRiverCapitalTrustIIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_FairValueOptionLoansHeldasAssetsAggregateFairValue" abstract="false" name="FairValueOptionLoansHeldasAssetsAggregateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_IncomeLossFromContinuingOperationsBeforeEquityInNetEarningsOfSubsidiaries" abstract="false" name="IncomeLossFromContinuingOperationsBeforeEquityInNetEarningsOfSubsidiaries" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_SellingAgreementConsiderationReceivableInEventOfCertainStockPurchaseAgreementConditionsMet" abstract="false" name="SellingAgreementConsiderationReceivableInEventOfCertainStockPurchaseAgreementConditionsMet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_PaymentForSellingAgreementPreCloseDividend" abstract="false" name="PaymentForSellingAgreementPreCloseDividend" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_AcquiredIntangibleAssetsLineItems" abstract="true" name="AcquiredIntangibleAssetsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_RequiredCollateralPercentage" abstract="false" name="RequiredCollateralPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationAccruedInvestmentIncomeReceivable" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationAccruedInvestmentIncomeReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_NonEmployeeDirectorIncentivePlan2014Member" abstract="true" name="NonEmployeeDirectorIncentivePlan2014Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_OtherIncomePolicyTextBlock" abstract="false" name="OtherIncomePolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="jrvr_ReinsuranceAggregateCoverageLimit" abstract="false" name="ReinsuranceAggregateCoverageLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ElectronicDataProcessingHardwareAndSoftwareMember" abstract="true" name="ElectronicDataProcessingHardwareAndSoftwareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_SecuredOvernightFinancingRateSOFRIndexAdjustmentMember" abstract="true" name="SecuredOvernightFinancingRateSOFRIndexAdjustmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="jrvr_IncreaseDecreaseInDeferredReinsuranceGain" abstract="false" name="IncreaseDecreaseInDeferredReinsuranceGain" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_PrepaidReinsurancePremiumsCededPercentageOfTotalBalance" abstract="false" name="PrepaidReinsurancePremiumsCededPercentageOfTotalBalance" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_JuniorSubordinatedDebtAxis" abstract="true" name="JuniorSubordinatedDebtAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestments" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_AmortizationOfPolicyAcquisitionCosts" abstract="false" name="AmortizationOfPolicyAcquisitionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ScheduleOfAcquiredIntangibleAssetsTable" abstract="true" name="ScheduleOfAcquiredIntangibleAssetsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_DividendLimitationsPercentageOfStatutorySurplus" abstract="false" name="DividendLimitationsPercentageOfStatutorySurplus" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_UnderwritingProfitLoss" abstract="false" name="UnderwritingProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationTotalExpense" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationTotalExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CommitmenttoInvestmentInLimitedPartnership" abstract="false" name="CommitmenttoInvestmentInLimitedPartnership" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_EnvironmentalMember" abstract="true" name="EnvironmentalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_EffectiveIncomeTaxRateReconciliationExcess162mCompensationAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationExcess162mCompensationAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_AmountOfCreditLossExpenseReinsured" abstract="false" name="AmountOfCreditLossExpenseReinsured" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedGains" abstract="false" name="ShortTermInvestmentsAndOtherGrossRealizedGains" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ProceedsForSellingAgreementPreCloseDividend" abstract="false" name="ProceedsForSellingAgreementPreCloseDividend" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CommercialMortgageAndAssetBackedAmortizedCost" abstract="false" name="CommercialMortgageAndAssetBackedAmortizedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CreditRiskReinsurerOneMember" abstract="true" name="CreditRiskReinsurerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_PreferredStockDividendTerm" abstract="false" name="PreferredStockDividendTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="jrvr_RasierMember" abstract="true" name="RasierMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ProceedsFromBankLoanParticipations" abstract="false" name="ProceedsFromBankLoanParticipations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationPremiumsWrittenNet" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationPremiumsWrittenNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CashEquivalentCollateralReturnedToTrust" abstract="false" name="CashEquivalentCollateralReturnedToTrust" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_SellingAgreementPreCloseDividend" abstract="false" name="SellingAgreementPreCloseDividend" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_NumberOfUnderwritingDivisions" abstract="false" name="NumberOfUnderwritingDivisions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_PercentageOfExciseTaxOnReinsurancePremiumsPaid" abstract="false" name="PercentageOfExciseTaxOnReinsurancePremiumsPaid" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationReserveForLossesAndLossAdjustmentExpenses" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationReserveForLossesAndLossAdjustmentExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShortDurationInsuranceContractAccidentYears2019AndPriorMember" abstract="true" name="ShortDurationInsuranceContractAccidentYears2019AndPriorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_PercentageOfDividendWithholdingTaxForDistributions" abstract="false" name="PercentageOfDividendWithholdingTaxForDistributions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_UnderwritingProfitLossOfOperatingSegments" abstract="false" name="UnderwritingProfitLossOfOperatingSegments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutForAchievementTarget" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutForAchievementTarget" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_FederalExciseTaxesPaidIntercompanyReinsurance" abstract="false" name="FederalExciseTaxesPaidIntercompanyReinsurance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense1" abstract="false" name="TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense1" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_LossFundTrustMember" abstract="true" name="LossFundTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ReinsuranceTransactionAxis" abstract="true" name="ReinsuranceTransactionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_ManufacturersAndContractorsMember" abstract="true" name="ManufacturersAndContractorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardContingentRightNumberOfSharesToBeReceived" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardContingentRightNumberOfSharesToBeReceived" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsGrossRealizedLoss" abstract="false" name="BankLoanParticipationsGrossRealizedLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ContingentLiabilitiesLineItems" abstract="true" name="ContingentLiabilitiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsChangesInFairValue" abstract="false" name="BankLoanParticipationsChangesInFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_AssociatedTrustAgreementDomain" abstract="true" name="AssociatedTrustAgreementDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_CommercialAutoBusinessMember" abstract="true" name="CommercialAutoBusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationFairValueOptionLoansHeldAsAssetsAggregateFairValue" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationFairValueOptionLoansHeldAsAssetsAggregateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationLossesAndLossAdjustmentExpenses" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationLossesAndLossAdjustmentExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationDeferredReinsuranceGain" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationDeferredReinsuranceGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_JamesRiverCapitalTrustIMember" abstract="true" name="JamesRiverCapitalTrustIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsLapsedInPeriodWeightedAverageExercisePrice" abstract="false" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsLapsedInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="jrvr_StandardPoorsBBBOrBetterRatingMember" abstract="true" name="StandardPoorsBBBOrBetterRatingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_RenewableEnergyLlcsMember" abstract="true" name="RenewableEnergyLlcsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_MinimumLiquidityRatio" abstract="false" name="MinimumLiquidityRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_FairValueofInvestmentsonDepositswithStateInsuranceDepartments" abstract="false" name="FairValueofInvestmentsonDepositswithStateInsuranceDepartments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_JrgReMember" abstract="true" name="JrgReMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_SpecialtyAdmittedInsuranceMember" abstract="true" name="SpecialtyAdmittedInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_AgencyTwoMember" abstract="true" name="AgencyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DeferredPolicyAcquisitionCost1" abstract="false" name="DeferredPolicyAcquisitionCost1" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutForAchievementMaximum" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutForAchievementMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="jrvr_ResidentialMortgageBackedFairValue" abstract="false" name="ResidentialMortgageBackedFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_AssetsDepositedForSecuringLettersOfCredit" abstract="false" name="AssetsDepositedForSecuringLettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_PublicStockOfferingMember" abstract="true" name="PublicStockOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationUnearnedPremiums" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationUnearnedPremiums" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_PaymentToEffectALossPortfolioTransferReinsuranceTransaction" abstract="false" name="PaymentToEffectALossPortfolioTransferReinsuranceTransaction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_CumulativeAmountsCededUnderLossPortfolioTransfer" abstract="false" name="CumulativeAmountsCededUnderLossPortfolioTransfer" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DeferredPolicyAcquisitionCostsUnderwritingAndOtherIssueExpenses" abstract="false" name="DeferredPolicyAcquisitionCostsUnderwritingAndOtherIssueExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedLosses" abstract="false" name="ShortTermInvestmentsAndOtherGrossRealizedLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_DisposalGroupIncludingDiscontinuedOperationDebtSecuritiesAvailableForSale" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationDebtSecuritiesAvailableForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsNetGainLoss" abstract="false" name="BankLoanParticipationsNetGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_BankHoldingCompanyMember" abstract="true" name="BankHoldingCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NotesReceivable" abstract="false" name="NotesReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_JuniorSubordinatedDebtDomain" abstract="true" name="JuniorSubordinatedDebtDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_AssociatedTrustAgreementAxis" abstract="true" name="AssociatedTrustAgreementAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="jrvr_LiabilityForCatastropheClaimsLosses" abstract="false" name="LiabilityForCatastropheClaimsLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_LossPortfolioTransferMember" abstract="true" name="LossPortfolioTransferMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="jrvr_NumberOfNotesIssued" abstract="false" name="NumberOfNotesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_AssetsExcludingAssetsHeldForSale" abstract="false" name="AssetsExcludingAssetsHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
