Henry III's government had not been too beneficial to the church; Władysław, now as a bishop and also regent, was not inclined to preserve the prerogatives of the nobility, but at the end he was forced to accept this. The bishop-regent was an advocate, with his late brother Henry III, for the canonization of their paternal grandmother, Duchess Hedwig of Silesia ("née" of Andechs). The process was finally completed, when Saint Hedwig was canonized by Pope Clement on 26 March 1267. This was certainly Władysław's great personal success and gave much prestige to the whole family.