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  <xs:element id="pwp_PaymentForTheExchangeOfPartnershipUnits" abstract="false" name="PaymentForTheExchangeOfPartnershipUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OneTwoPriceTrancheMember" abstract="true" name="OneTwoPriceTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_InterestIncomePolicyPolicyTextBlock" abstract="false" name="InterestIncomePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="pwp_AdjustmentsToAdditionalPaidInCapitalChangeInOwnershipInterestValue" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalChangeInOwnershipInterestValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ReimbursableExpensesRecordedAsRevenue" abstract="false" name="ReimbursableExpensesRecordedAsRevenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_DistributionRateForClassBCommonStockComparedToClassA" abstract="false" name="DistributionRateForClassBCommonStockComparedToClassA" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_FounderSharePurchaseOptionMember" abstract="true" name="FounderSharePurchaseOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsModifiedInPeriodWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsModifiedInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_DollarFifteenPriceMember" abstract="true" name="DollarFifteenPriceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_EffectiveIncomeTaxRateReconciliationChangeInFairValueOfWarrantLiabilitiesPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInFairValueOfWarrantLiabilitiesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_FtivAndOtherPartiesMember" abstract="true" name="FtivAndOtherPartiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_ClassB1CommonStockMember" abstract="true" name="ClassB1CommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearFour" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_DeferredTaxLiabilitiesAnticipatoryForeignTaxCredit" abstract="false" name="DeferredTaxLiabilitiesAnticipatoryForeignTaxCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_EarningsPerShareIncomeLossCommonStockAbstract" abstract="true" name="EarningsPerShareIncomeLossCommonStockAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_MinimumSharePriceAndPurchasePrice" abstract="false" name="MinimumSharePriceAndPurchasePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="pwp_EarningsPerShareOtherDisclosureAbstract" abstract="true" name="EarningsPerShareOtherDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_NumberOfSponsorSharesDistributedSubjectToTransferRestrictions" abstract="false" name="NumberOfSponsorSharesDistributedSubjectToTransferRestrictions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_DeferredTaxAssetsDueToStepUpAndDifferenceBasisIncreaseDecrease" abstract="false" name="DeferredTaxAssetsDueToStepUpAndDifferenceBasisIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AccruedTreasuryStockPurchases" abstract="false" name="AccruedTreasuryStockPurchases" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_NonControllingInterestPolicyTextBlock" abstract="false" name="NonControllingInterestPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="pwp_RelatedPartyIncomeAbstract" abstract="true" name="RelatedPartyIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_PaymentsPursuantToTaxReceivableAgreement" abstract="false" name="PaymentsPursuantToTaxReceivableAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_CompensationExpenseExcludingEquityBasedCompensation" abstract="false" name="CompensationExpenseExcludingEquityBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_IncentivePlanAwardsMember" abstract="true" name="IncentivePlanAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_TransactionPoolRsusMember" abstract="true" name="TransactionPoolRsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_PartnerPromissoryNotesMember" abstract="true" name="PartnerPromissoryNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_CommonStockNumberOfVotingRightsWithCeasedThresholdPercentage" abstract="false" name="CommonStockNumberOfVotingRightsWithCeasedThresholdPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_DeferredTaxAssetsOperatingLeaseLiabilities" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_TsaMember" abstract="true" name="TsaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_MinimumPercentageCondition" abstract="false" name="MinimumPercentageCondition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="pwp_FurnitureFixturesAndEquipmentMember" abstract="true" name="FurnitureFixturesAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_NonCashPaydownOfPartnerPromissoryNotes" abstract="false" name="NonCashPaydownOfPartnerPromissoryNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_TrancheFourMember" abstract="true" name="TrancheFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_LongTermIncentiveAwardsMember" abstract="true" name="LongTermIncentiveAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_DividendsAndDistributionsRate" abstract="false" name="DividendsAndDistributionsRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag" abstract="false" name="DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_DeferredCompensationLiabilitySettled" abstract="false" name="DeferredCompensationLiabilitySettled" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AllowanceForCreditLossesPolicyTextBlock" abstract="false" name="AllowanceForCreditLossesPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="pwp_LossContingencyPendingPlaintiffsClaimsNumber" abstract="false" name="LossContingencyPendingPlaintiffsClaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_TransactionPoolPsusMember" abstract="true" name="TransactionPoolPsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_LossContingencyPendingCounterclaimsNumber" abstract="false" name="LossContingencyPendingCounterclaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_LondonAndNewYorkOfficeMember" abstract="true" name="LondonAndNewYorkOfficeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_AmountDuePursuantToTaxReceivableAgreement" abstract="false" name="AmountDuePursuantToTaxReceivableAgreement" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_BusinessRealignmentMember" abstract="true" name="BusinessRealignmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PartnersCapitalAccountDistributionsAfterBusinessCombination" abstract="false" name="PartnersCapitalAccountDistributionsAfterBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_TaxReceivableAgreementPolicyTextBlock" abstract="false" name="TaxReceivableAgreementPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="pwp_CommonStockNumberOfVotingRights" abstract="false" name="CommonStockNumberOfVotingRights" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" abstract="false" name="DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ProfessionalPartnersAndIlpsMember" abstract="true" name="ProfessionalPartnersAndIlpsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_RedemptionOfPartnersInterest" abstract="false" name="RedemptionOfPartnersInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_MarketConditionSharePriceRequirement" abstract="false" name="MarketConditionSharePriceRequirement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFive" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ClassB2CommonStockMember" abstract="true" name="ClassB2CommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationGrantDateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PublicWarrantMember" abstract="true" name="PublicWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_DilutiveSecuritiesEffectOnBasicEarningsPerShareOtherUnits" abstract="false" name="DilutiveSecuritiesEffectOnBasicEarningsPerShareOtherUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_FollowOnPublicOfferingMember" abstract="true" name="FollowOnPublicOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_LegacyAwardsMember" abstract="true" name="LegacyAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_EffectOfBusinessCombinationOnShare" abstract="false" name="EffectOfBusinessCombinationOnShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_LossContingencyPendingDefendantsClaimsNumber" abstract="false" name="LossContingencyPendingDefendantsClaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_NumberOfFounderShares" abstract="false" name="NumberOfFounderShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_FairValueMeasurementsAndInvestmentsDisclosureTextBlock" abstract="false" name="FairValueMeasurementsAndInvestmentsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="pwp_CommonClassB1Member" abstract="true" name="CommonClassB1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearThree" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PendingDismissalMember" abstract="true" name="PendingDismissalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_DeferredCompensationArrangementWithIndividualForfeitedAmount" abstract="false" name="DeferredCompensationArrangementWithIndividualForfeitedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_WorkingPartnersMember" abstract="true" name="WorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_UnitsOfMinorityInterestAmount" abstract="false" name="UnitsOfMinorityInterestAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_AllowanceForDoubtfulAccountsReceivableForeignCurrencyTranslation" abstract="false" name="AllowanceForDoubtfulAccountsReceivableForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearFive" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_TransactionPSUsMember" abstract="true" name="TransactionPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TSACompensationRelatedMember" abstract="true" name="TSACompensationRelatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="pwp_RelatedPartyTransactionPartnerPromissoryNotes" abstract="false" name="RelatedPartyTransactionPartnerPromissoryNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearTwo" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
