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  <xsd:element id="pwp_CommonStockForfeitedValuePerShare" name="CommonStockForfeitedValuePerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_CompensationExpenseExcludingEquityBasedCompensation" name="CompensationExpenseExcludingEquityBasedCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_CumulativeEffectOfAccountingChange" name="CumulativeEffectOfAccountingChange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_DebtInstrumentCommitmentFeePercentage" name="DebtInstrumentCommitmentFeePercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" name="DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_DeferredTaxAssetsIncomeTaxes" name="DeferredTaxAssetsIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_DistributionRateForClassBCommonStockComparedToClassA" name="DistributionRateForClassBCommonStockComparedToClassA" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_EffectOfBusinessCombination" name="EffectOfBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_EffectOfBusinessCombinationOnShare" name="EffectOfBusinessCombinationOnShare" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFour" name="EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementRemainderOfFiscalYear" name="EstimatedPaymentsUnderTaxReceivableAgreementRemainderOfFiscalYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearFour" name="EstimatedPaymentsUnderTaxReceivableAgreementYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearOne" name="EstimatedPaymentsUnderTaxReceivableAgreementYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearThree" name="EstimatedPaymentsUnderTaxReceivableAgreementYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearTwo" name="EstimatedPaymentsUnderTaxReceivableAgreementYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_ForeignCurrencyTranslationGainLossBeforeTaxAfterBusinessCombination" name="ForeignCurrencyTranslationGainLossBeforeTaxAfterBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_ForeignCurrencyTranslationGainLossBeforeTaxPriorToBusinessCombination" name="ForeignCurrencyTranslationGainLossBeforeTaxPriorToBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_FounderSharesConvertibleMinimumConsecutiveTradingDays" name="FounderSharesConvertibleMinimumConsecutiveTradingDays" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_FounderSharesConvertibleThresholdConsecutiveTradingDays" name="FounderSharesConvertibleThresholdConsecutiveTradingDays" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_IncreaseDecreaseInOperatingLeaseLiabilities" name="IncreaseDecreaseInOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_IncreaseDecreaseInOperatingLeaseRightOfUseAsset" name="IncreaseDecreaseInOperatingLeaseRightOfUseAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_IncrementalCommonSharesAttributableToExchangeOfPWPOpCoUnits" name="IncrementalCommonSharesAttributableToExchangeOfPWPOpCoUnits" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_IndemnificationProvisionLiability" name="IndemnificationProvisionLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_LatePaymentFeePercentFee" name="LatePaymentFeePercentFee" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" name="LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_LesseeOperatingSubleaseOptionToTerminateNotice" name="LesseeOperatingSubleaseOptionToTerminateNotice" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_LessorSubleaseIncomeToBeReceivedAfterYearFour" name="LessorSubleaseIncomeToBeReceivedAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LessorSubleaseIncomeToBeReceivedRemainderOfFiscalYear" name="LessorSubleaseIncomeToBeReceivedRemainderOfFiscalYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LessorSubleaseIncomeToBeReceivedYearFour" name="LessorSubleaseIncomeToBeReceivedYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LessorSubleaseIncomeToBeReceivedYearOne" name="LessorSubleaseIncomeToBeReceivedYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LessorSubleaseIncomeToBeReceivedYearThree" name="LessorSubleaseIncomeToBeReceivedYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LessorSubleaseIncomeToBeReceivedYearTwo" name="LessorSubleaseIncomeToBeReceivedYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceived" name="LessorSubleaseRentalsPaymentsToBeReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_LockUpPeriod" name="LockUpPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_MaximumAmountOfRevolvingCreditFacilityForLettersOfCredit" name="MaximumAmountOfRevolvingCreditFacilityForLettersOfCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_MaximumIncrementalRevolvingCommitments" name="MaximumIncrementalRevolvingCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_MinimumAmountHeldByRedeemingHolders" name="MinimumAmountHeldByRedeemingHolders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_MinimumSharePriceAndPurchasePrice" name="MinimumSharePriceAndPurchasePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_NetAssetsOfDeconsolidatedAffiliate" name="NetAssetsOfDeconsolidatedAffiliate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_NetProceedsUsedToRedeemOwnershipInterest" name="NetProceedsUsedToRedeemOwnershipInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_NumberOfClientOverTenPercentBenchmark" name="NumberOfClientOverTenPercentBenchmark" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_NumberOfClients" name="NumberOfClients" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_NumberOfClientsOverTenPercentBenchmark" name="NumberOfClientsOverTenPercentBenchmark" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_NumberOfFounderShares" name="NumberOfFounderShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_NumberOfShareRepurchase" name="NumberOfShareRepurchase" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFour" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearFour" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearOne" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearTwo" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsRemainderOfFiscalYear" name="OperatingLeaseLiabilitiesNetMinimumPaymentsRemainderOfFiscalYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OperatingLeasesLiabilitiesNetMinimumPaymentDue" name="OperatingLeasesLiabilitiesNetMinimumPaymentDue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_OriginalIssueDiscountRate" name="OriginalIssueDiscountRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_PartnersCapitalAccountUnitBasedCompensationAfterBusinessCombination" name="PartnersCapitalAccountUnitBasedCompensationAfterBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_PartnersCapitalAccountUnitBasedCompensationPriorToBusinessCombination" name="PartnersCapitalAccountUnitBasedCompensationPriorToBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_PercentageOfSharesOutstanding" name="PercentageOfSharesOutstanding" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_PeriodFounderSharesMayBePurchased" name="PeriodFounderSharesMayBePurchased" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_PreferredAndCommonStockSharesAuthorized" name="PreferredAndCommonStockSharesAuthorized" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_PremiumPaidToCertainRedeemingHolders" name="PremiumPaidToCertainRedeemingHolders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_PreviousDeferredOfferingCostsExpensed" name="PreviousDeferredOfferingCostsExpensed" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_ProceedsFromBusinessCombination" name="ProceedsFromBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_ProfitLossAfterBusinessCombination" name="ProfitLossAfterBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_ProfitLossPriorToBusinessCombination" name="ProfitLossPriorToBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_RedemptionOfPartnersInterest" name="RedemptionOfPartnersInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_ReimbursableExpensesRecordedAsRevenue" name="ReimbursableExpensesRecordedAsRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_RelatedPartyTransactionPartnerPromissoryNotes" name="RelatedPartyTransactionPartnerPromissoryNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_ShareBasedCompensationApprovedForGrant" name="ShareBasedCompensationApprovedForGrant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountRateMaximum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountRateMaximum" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountRateMinimum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountRateMinimum" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_StockholderAgreementFivePercentCondition" name="StockholderAgreementFivePercentCondition" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_TaxReceivableAgreementTaxSavingsPercentage" name="TaxReceivableAgreementTaxSavingsPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_TotalLongTermDebtNet" name="TotalLongTermDebtNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="pwp_UnitsOfMinorityInterestAmount" name="UnitsOfMinorityInterestAmount" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsAndRightsOutstandingExpectedDividendRate" name="WarrantsAndRightsOutstandingExpectedDividendRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExercisePrice" name="WarrantsAndRightsOutstandingFairValueAssumptionsExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExpectedDividendRate" name="WarrantsAndRightsOutstandingFairValueAssumptionsExpectedDividendRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExpectedTerm" name="WarrantsAndRightsOutstandingFairValueAssumptionsExpectedTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExpectedVolatilityRate" name="WarrantsAndRightsOutstandingFairValueAssumptionsExpectedVolatilityRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsRiskFreeRateOfReturn" name="WarrantsAndRightsOutstandingFairValueAssumptionsRiskFreeRateOfReturn" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsIntrinsicPricePerUnit" name="WarrantsIntrinsicPricePerUnit" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="pwp_AffiliatesMember" name="AffiliatesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_CadenceBankMember" name="CadenceBankMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ClassB1CommonStockMember" name="ClassB1CommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ClassB2CommonStockMember" name="ClassB2CommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_CommonClassB1Member" name="CommonClassB1Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ConvertibleNotesDueTwoThousandAndTwentySixMember" name="ConvertibleNotesDueTwoThousandAndTwentySixMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ConvertibleNotesMember" name="ConvertibleNotesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_CreditAgreementMember" name="CreditAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_DollarFifteenPriceMember" name="DollarFifteenPriceMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_DollarTwelvePriceMember" name="DollarTwelvePriceMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_EffectiveInterestRateMember" name="EffectiveInterestRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ElectingFormerWorkingPartnersMember" name="ElectingFormerWorkingPartnersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ElectingIlpsMember" name="ElectingIlpsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ExistingInvestorLimitedPartnersMember" name="ExistingInvestorLimitedPartnersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_FederalFundsRateMember" name="FederalFundsRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_FinTechAcquisitionCorpIVMember" name="FinTechAcquisitionCorpIVMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_FixedRateMember" name="FixedRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_FormerWorkingPartnersMember" name="FormerWorkingPartnersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_FounderSharePurchaseOptionMember" name="FounderSharePurchaseOptionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_FtivAndOtherPartiesMember" name="FtivAndOtherPartiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_GeneralShareReserveMember" name="GeneralShareReserveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_LegacyAwardsAndProfessionalPartnersAwardsMember" name="LegacyAwardsAndProfessionalPartnersAwardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_LegacyAwardsMember" name="LegacyAwardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_LetterAgreementsMember" name="LetterAgreementsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_MembersOfManagementAndOtherPartnersMember" name="MembersOfManagementAndOtherPartnersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_NewYorkOfficeMember" name="NewYorkOfficeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_NotePurchaseAgreementFirstAmendmentMember" name="NotePurchaseAgreementFirstAmendmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_OthersMember" name="OthersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PartnerPromissoryNotesMember" name="PartnerPromissoryNotesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PFACHoldingsMember" name="PFACHoldingsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PipeInvestorsMember" name="PipeInvestorsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PriorToBusinessCombinationMember" name="PriorToBusinessCombinationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PrivatePlacementWarrantsMember" name="PrivatePlacementWarrantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PrivateWarrantMember" name="PrivateWarrantMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PrivateWarrantsMember" name="PrivateWarrantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ProfessionalPartnersAndIlpsMember" name="ProfessionalPartnersAndIlpsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ProfessionalPartnersAwardMember" name="ProfessionalPartnersAwardMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PublicWarrantMember" name="PublicWarrantMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PublicWarrantsMember" name="PublicWarrantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PWPCapitalHoldingsLPMember" name="PWPCapitalHoldingsLPMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PwpIncentivePlanMember" name="PwpIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PwpOmnibusIncentivePlanAwardsMember" name="PwpOmnibusIncentivePlanAwardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PWPOpCoMember" name="PWPOpCoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_PwpOpcoProfessionalPartnersAndCertainOtherPersonsMember" name="PwpOpcoProfessionalPartnersAndCertainOtherPersonsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ReductionToCadenceBankPrimeRateMember" name="ReductionToCadenceBankPrimeRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_RevolvingCreditFacilityDueAprilOneTwoThousandAndTwentyTwoMember" name="RevolvingCreditFacilityDueAprilOneTwoThousandAndTwentyTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_SoftwareMember" name="SoftwareMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_SponsorMember" name="SponsorMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_SponsorRelatedPipeInvestorsMember" name="SponsorRelatedPipeInvestorsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_SubordinatedUnsecuredConvertibleNotesMember" name="SubordinatedUnsecuredConvertibleNotesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_TransactionPoolShareReserveMember" name="TransactionPoolShareReserveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_TSACompensationRelatedMember" name="TSACompensationRelatedMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_TsaMember" name="TsaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_TSANonCompensationRelatedMember" name="TSANonCompensationRelatedMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_TwoThousandAndTwentyLetterAgreementsMember" name="TwoThousandAndTwentyLetterAgreementsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_WeightedAverageInterestRateMember" name="WeightedAverageInterestRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_WorkingPartnersMember" name="WorkingPartnersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="pwp_ScheduleOfApplicableInterestRateTableTextBlock" name="ScheduleOfApplicableInterestRateTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_FairValueMeasurementsAndInvestmentsDisclosureTextBlock" name="FairValueMeasurementsAndInvestmentsDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_NonControllingInterestPolicyTextBlock" name="NonControllingInterestPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_PrepaidExpensesAndOtherAssetsPolicyTextBlock" name="PrepaidExpensesAndOtherAssetsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_RegulatoryRequirementsTextBlock" name="RegulatoryRequirementsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_ScheduleOfEstimatedPaymentsUnderTaxReceivableAgreement" name="ScheduleOfEstimatedPaymentsUnderTaxReceivableAgreement" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_TaxReceivableAgreementPolicyTextBlock" name="TaxReceivableAgreementPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="pwp_WarrantsTextBlock" name="WarrantsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
