William III de [Earl of Surrey] Warenne (Warren) - Pedigree | FamilyCentral
 Abt 1081 - 11 May 1138
 Abt 1081 - 13 Feb 1131
 Abt 1055 - 24 Jun 1088
 Abt 1063 - 27 May 1085
 Abt 1050 - 18 Oct 1102
 Abt 1050 - 23 Sep 1120/24