 He was possibly the son of Adalbert, Count of Pombia, or possibly of Berengar II or his half-brother Anscar of Spoleto.He was the father of Guibert, Count of Biandrate; Arduin (955-1015), Margrave of Ivrea (990-1015) and King of Italy (1002-1014); and Amadeus, Count of Pombia.He was married to the granddaughter of Arduin Glaber and was a nephew of King Berengar II.