Elżbieta Szydłowska
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Elżbieta Szydłowska (b. 1748 d. 1 June 1810) - Polish-Lithuanian szlachcianka, mistress and morganatic wife of Stanisław August Poniatowski.
She was a daughter of polish szlachcic Teodor Szydłowski. In 1768 she married polish szlachcic Jan Jerzy Grabowski. Her daughter was Izabela Grabowska and Aleksandra Krasicka.