Frederick William, Duke of Cieszyn
Member of the Silesian Piasts
Frederick William of Cieszyn was a Duke of Cieszyn since 1617 until his death; he was the last male scion of the Cieszyn branch of Silesian Piasts. Wikipedia
Born: November 9, 1601, Duchy of Teschen
Died: August 19, 1625 (age 23 years)
Great-grandparents: Wenceslaus II, Duke of Cieszyn, Albrecht VII, Duke of Mecklenburg, Sibylle of Saxony, and more
Grandparents: Wenceslaus III Adam, Duke of Cieszyn, Sidonia Catharina van Saksen, Gotthard Kettler, and more
Parents: Adam Wenceslaus, Duke of Cieszyn and Elisabeth von Kettler