Background
Andrzej was a son of Count Stanisław Poniatowski, Castellan of Krakow, and Princess Konstancja Czartoryska, the brother of King Stanisław August Poniatowski of Poland and the father of Józef Antoni Poniatowski.
Andrzej was a son of Count Stanisław Poniatowski, Castellan of Krakow, and Princess Konstancja Czartoryska, the brother of King Stanisław August Poniatowski of Poland and the father of Józef Antoni Poniatowski.
He became Starost of Pieńsk (starost prenski), Lieutenant-General in 1760 and Field Marshal in 1771 both in Austrian service and disguised himself during the Seven Years" War. The Coronation Sejm awarded him the Polish title of Prince on 4 December 1764, Empress Maria Theresa on 10 December 1765 the Bohemian title of Prince, and Emperor Joseph II the Austrian title of Prince. He was also starost prenski.