The nomination for the office of the Grand Notary of Lithuania. Written by King Augustus III of Poland, stamped by Chancellor Józef Dułęba, July 12, 1754
Sosnowski is best remembered as the father of a love interest of Tadeusz Kościuszko's, Ludwika Sosnowska. Sosnowski refused him his daughter's hand, reputedly telling the future hero of the American Revolution and leader of Poland's Kosciuszko Uprising against Russia that "turtledoves are not for common sparrows, and magnates' daughters are not for petty nobility."