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Jan Fryderyk Sapieha (Lithuanian: Jonas Frederikas Sapiega) (18 October 1680 in Dobratycze[1] – 6 July 1751 in Łysowodach[2]) was a Polish-Lithuanian nobleman, Grand Recorder of Lithuania between 1706 and 1709, since 1716 – the castellan of Trakai and after 1735 – the Grand Chancellor of Lithuania.[3] He was married to Konstancja Radziwiłł.[4]
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