Władysław died on 27 April 1270 and was buried in Salzburg Cathedral. In his will, he left his rights over the half of the Duchy of Wroclaw to his nephew Henry IV Probus. There were some rumours that the cause of death of the young bishop, with not more than thirty-three years, was poisoning. Guilty of this crime have to be among the nobility, who four years earlier apparently killed Duke Henry III the White, and almost twenty years later his nephew Henry IV shared the same fate. The mere fact of mentioning the same source (the "Chronicle of the Silesian Piast Dukes" and his likes) stated that the subsequent death of the Dukes of Wroclaw in a short term appears to be somewhat suspect. Likely source of sensational suit has gone, but few credible rumors. The sudden death of a young prince caused by natural factors in the time, when the medical service was not the best, could easily be interpreted as a poisoning. Władysław's death was likely, however, natural, which indicates the presumable place of his death, Salzburg. If the Polish nobles actually wanted to kill him, they presumably would have made this when he stayed in Wroclaw and may not have chosen a long journey to Germany to eliminate the bishop-regent.