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  <xs:element id="mar_EffectiveIncomeTaxRateReconciliationChangeinUncertainTaxPositionsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeinUncertainTaxPositionsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="mar_DeferredTaxAssetsLeasingArrangements" abstract="false" name="DeferredTaxAssetsLeasingArrangements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_ReconciliationOfDepreciationandAmortizationfromSegmentstoConsolidatedTableTextBlock" abstract="false" name="ReconciliationOfDepreciationandAmortizationfromSegmentstoConsolidatedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="mar_CaribbeanAndLatinAmericaPropertiesMember" abstract="true" name="CaribbeanAndLatinAmericaPropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="mar_SignificantAccountingPoliciesLineItems" abstract="true" name="SignificantAccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mar_AssetAcquisitionNumberOfJointVenturesAcquired" abstract="false" name="AssetAcquisitionNumberOfJointVenturesAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
</xs:schema>
