Wenceslaus I, Duke of Legnica was a Duke of Namysłów from 1338 and of Legnica-Brieg from 1342 until his death, but with further divisions with his brother Louis I.
He was the eldest son of Bolesław III the Generous, Duke of Legnica-Brieg by his... Wikipedia
Born: 1318
Died: June 2, 1364 (age 46 years)
Grandchild: Barbara of Legnica
Grandparents: Wenceslaus II of Bohemia, Henry V, Duke of Legnica, Judith of Habsburg, and more
Great grandchild: Barbara of Saxe-Wittenberg
Great-grandparents: Bolesław II the Horned, Bolesław the Pious, Ottokar II of Bohemia, and more
Children: Wenceslaus II of Legnica, Rupert I of Legnica, Bolesław IV of Legnica, and more