Sigismund II Augustus, Polish king (born 1520)

Sigismund II Augustus

First ruler of the Polish-Lithuanian Commonwealth (1569-72)

Sigismund II Augustus was King of Poland and Grand Duke of Lithuania, the son of Sigismund I the Old, whom Sigismund II succeeded in 1548. He was the first ruler of the Polish–Lithuanian Commonwealth and the last male monarch from the Jagiellonian dynasty.