ボレスワフ4世
Władysław soon entered into fierce conflicts with his brothers and the Polish nobility. When in 1146 he attempted to take control of the whole of Poland, he was excommunicated by Archbishop Jakub ze Żnina of Gniezno and his brothers finally drove him into exile. He was received by King Conrad III of Germany, his brother-in-law by Władysław's consort Agnes of Babenberg, at the imperial palace of Altenburg. Silesia and the Seniorate Province came under the control of second-born Bolesław IV the Curly, Duke of Masovia. In the same year King Conrad III attempted to regain power for Władysław, but failed. Not until 1157 Duke Bolesław IV the Curly was defeated in a campaign by Konrads successor Emperor Frederick Barbarossa, however, the "Silesian issue" was not mentioned in the treaty concluded by the rulers, and so Władysław remained in exile. He died in 1159 without returning to Poland.