Nielsen Hayden genealogy
Ancestors of William IV of Montferrat
1035 - 1100 (~ 70 years) ┌── William I of Montferrat (Abt 865 - Between 924 and 933)
┌── Aleramo of Montferrat (Abt 915 - 991 bur.Grazzano Badoglio, Asti, Piedmont, Italy)
┌── Otto I of Montferrat (Abt 945 - 991)
│ └── Adelaide
│
┌── William III of Montferrat (Abt 970 - Bef 29 Jan 1042)
┌── Otto II of Montferrat (Abt 1015 - 20 Nov 1084)
│ └── Waza
│
William IV of Montferrat (Between 1030 and 1035 - 1100)