"Frederick II, Duke of Legnica (Polish: Fryderyk II Legnicki) (12 February 1480 – 17 September 1547), also known as the Great of Legnica (Polish: Legnicki Wielki), was a Duke of Legnica from 1488 (until 1495 and 1505 with his brothers), of Brzeg from 1521. The most notorious of all Legnica Piast rulers, thanks to his excellent financial politics his Duchy was expanded to the Oder River, and he became the founder of the Duchy of Legnica-Wołów-Brzeg (German: Herzogtum Liegnitz-Wohlau-Brieg).
He was the second son of Frederick I, Duke of Chojnów-Oława-Legnica-Brzeg-Lubin, by his wife Ludmila, daughter of George of Poděbrady, King of Bohemia." - (en.wikipedia.org 02.10.2020)
en