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  <xs:element name="CommitmentsandContingenciesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="ptoru_CommitmentsandContingenciesDetailsTable"/>
  <xs:element name="UnderwritersOptionToPurchaseDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_UnderwritersOptionToPurchaseDays"/>
  <xs:element name="PurchaseOfAdditionalUnitsShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PurchaseOfAdditionalUnitsShares"/>
  <xs:element name="PercentagesOfUnderwritingDiscount" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentagesOfUnderwritingDiscount"/>
  <xs:element name="DeferredUnderwritersPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_DeferredUnderwritersPercentage"/>
  <xs:element name="CashUnderwritingDiscountPercenatge" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_CashUnderwritingDiscountPercenatge"/>
  <xs:element name="OptionGrossProceedsPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_OptionGrossProceedsPercentage"/>
  <xs:element name="ThirdPartyValuationMeasurementInput" type="xbrli:decimalItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ThirdPartyValuationMeasurementInput"/>
  <xs:element name="ShareholdersDeficitDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="ptoru_ShareholdersDeficitDetailsTable"/>
  <xs:element name="PercentageOfConvertedShare" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentageOfConvertedShare"/>
  <xs:element name="PercentageOfVotingRights" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentageOfVotingRights"/>
  <xs:element name="NumberOfOrdinaryShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="ptoru_NumberOfOrdinaryShares"/>
  <xs:element name="NoEventLaterThanBusinessDaysAfterTheClosingBusinessCombinations" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_NoEventLaterThanBusinessDaysAfterTheClosingBusinessCombinations"/>
  <xs:element name="ReasonableEffortsToCauseTheSameToBecomeEffectiveDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ReasonableEffortsToCauseTheSameToBecomeEffectiveDays"/>
  <xs:element name="ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights"/>
  <xs:element name="PriorToTheWrittenNoticeForTheEmployeeAgreement" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PriorToTheWrittenNoticeForTheEmployeeAgreement"/>
  <xs:element name="ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdConsecutiveTradingDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdConsecutiveTradingDays"/>
  <xs:element name="ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger"/>
  <xs:element name="ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdTradingDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdTradingDays"/>
  <xs:element name="NumberOfTradingDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_NumberOfTradingDays"/>
  <xs:element name="SubsequentEventsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="ptoru_SubsequentEventsDetailsTable"/>
  <xs:element name="PercentageOfCashUnderwritingDiscount" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentageOfCashUnderwritingDiscount"/>
  <xs:element name="PercentageOfUnderwritersDeferredCommissions" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentageOfUnderwritersDeferredCommissions"/>
  <xs:element name="PercentageOfConsummationOfTheInitialBusinessCombination" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentageOfConsummationOfTheInitialBusinessCombination"/>
  <xs:element name="PercentageOfGrossProceeds" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PercentageOfGrossProceeds"/>
  <xs:element name="OverallotmentOptionExercisedPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_OverallotmentOptionExercisedPeriod"/>
  <xs:element name="AggregateGrossProceeds" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="ptoru_AggregateGrossProceeds"/>
  <xs:element name="NetProceedsFromTheSaleOfPublicUnits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="ptoru_NetProceedsFromTheSaleOfPublicUnits"/>
  <xs:element name="ClassAOrdinarySharesParValue00001PerShareMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_ClassAOrdinarySharesParValue00001PerShareMember"/>
  <xs:element name="DeSPACAndInstrumentSpecificMarketAdjustmentMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_DeSPACAndInstrumentSpecificMarketAdjustmentMember"/>
  <xs:element name="FounderShareMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_FounderShareMember"/>
  <xs:element name="LiquidityMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_LiquidityMember"/>
  <xs:element name="PraetorianSponsorLLCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PraetorianSponsorLLCMember"/>
  <xs:element name="PromissoryNoteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_PromissoryNoteMember"/>
  <xs:element name="RedeemableWarrantMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_RedeemableWarrantMember"/>
  <xs:element name="RedeemableWarrantsEachWholeWarrantExercisableForOneClassAOrdinaryShareAtAnExercisePriceOf1150Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_RedeemableWarrantsEachWholeWarrantExercisableForOneClassAOrdinaryShareAtAnExercisePriceOf1150Member"/>
  <xs:element name="RepresentativeSharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_RepresentativeSharesMember"/>
  <xs:element name="SponsorMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_SponsorMember"/>
  <xs:element name="TrustAccountMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_TrustAccountMember"/>
  <xs:element name="UnderwritersAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_UnderwritersAgreementMember"/>
  <xs:element name="UnitsEachConsistingOfOneClassAOrdinaryShareAndOnethirdOfOneRedeemableWarrantMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_UnitsEachConsistingOfOneClassAOrdinaryShareAndOnethirdOfOneRedeemableWarrantMember"/>
  <xs:element name="WorkingCapitalLoansMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_WorkingCapitalLoansMember"/>
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  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="ptoru_DocumentAndEntityInformationAbstract"/>
</xs:schema>
