Frederick William of Cieszyn was a Duke of Cieszyn (Teschen) since 1617 until his death; he was the last male scion of the Cieszyn branch of Silesian Piasts.
Silesian Piasts
Videos
The Silesian Piasts were the elder of four lines of the Polish Piast dynasty beginning with Władysław II the Exile (1105–1159), eldest son of Duke Bolesław III of Poland. By Bolesław's testament, Władysław was granted Silesia as his hereditary province and also the Lesser Polish Seniorate Province at Kraków according to the principle of agnatic seniority.
Monarchy of the Silesian Henries
Henry IV. at his court
The gatehouse to the Silesian Piasts castle in Brzeg (1554–1560) with sculptures of the Piast rulers from Siemowit to Frederick II of Legnica