Prince Kazimierz Nestor Sapieha was a Polish-Lithuanian noble and one of the creators of the 3 May Constitution. Wikipedia
Born: February 14, 1757, Brest, Belarus
Died: May 25, 1798 (age 41 years), Vienna, Austria
Grandparent: Piotr Franciszek Branicki
Great-grandparent: Branicki Józef
Education: Corps of Cadets (1767–1771)
Parents: Elżbieta Branicka
Previous office: Marshal of the Sejm of the Republic of Poland (1788–1792)