Bishop (c.1036-1086), called The Younger to distinguish him from his uncle, Pope Alexander II, born Mantua, Italy; died there. Made Bishop of Lucca by his uncle, he accepted lay investiture from Henry IV of Germany, and in remorse became a Benedictine. Gregory VII ordered him to return to his see, where he made many reforms. He wrote against lay investiture and the antipope Guibert. Patron of Mantua. Because through his prayers was obtained the rout of the enemies of Gregory VII, he is represented before an army in confusion. Feast, March 18,.