St. Peter Urseolus - Peter was the doge of Venice. He left his wife to become a Benedictine monk and later a hermit. Died in 987. - http://www.newadvent.org/cathen/11776a.htm
St. Peter Orseolo - Short biography, by Clifford Stevens. - http://www.ewtn.com/library/MARY/ORSEOLO.htm