Wenceslaus II of Bohemia
Nevertheless, Bolesław's son Henry V the Fat, who succeeded his father in 1278, was able to enlarge the duchy's territories by defeating his cousin Henry Probus, Duke of Wrocław, and, with support of King Wenceslaus II of Bohemia succeeded him as duke in 1290. Thus, the Lower Silesian duchies of Legnica and Wrocław were re-reunited until 1311.