Wenceslaus I of Legnica

Wenceslaus I (c. 1318–1364), eldest son of Bolesław III the Generous of Legnica, ruled Legnica-Brzeg jointly with his brother Louis I after their father abdicated in 1342, dividing their rule in 1345.

A quarrel over the inheritance after their father's death in 1352 sparked a six-year civil war; defeated in 1359, Wenceslaus ceded Brzeg-Oława and Chojnów to Louis. A loyal supporter of Emperor Charles IV, he died excommunicated for unpaid debts and was buried in the Legnica church he had founded.