Stanisław Leszczyński
Kazimierz became Podczaszy of Lithuania since 1699, Grand Treasurer of Lithuania in 1707–1709, nominated by King Stanisław Leszczyński. He was also Deputy Chancellor of Lithuania in 1712–1724. Castellan of Vilnius since 1724 and starost of Krzemieniec, Wieliż and Uświaty.