Answer
Bona Sforza was the mother of Sigismund II Augustus, the last male ruler of the Jagiellonian dynasty in Poland. She was an Italian princess, the daughter of Gian Galeazzo Sforza, Duke of Milan. Bona was a powerful and influential figure in Polish politics, and she played a significant role in her son's reign. She was known for her intelligence, ambition, and ruthlessness.