50Zl Polish Rulers Series Bolesław III Wrymouth 1086-1138 Reigned as Prince of Poland 1107–38. Bolesław III Wrymouth has been recognized by historiography as a symbol of Polish political aspirations until well into the 19th century. He also upheld the independence of the Polish archbishopric of Gniezno, despite a temporary failure in the 1130s. Despite undoubted successes, he committed serious political errors, most notably against Zbigniew of Poland, his half-brother. The crime against Zbigniew and his penance for it show Bolesław’s great ambition as well as his ability to find political compromise Polish Eagle