William de [Earl] Montagu - Pedigree | FamilyCentral
 Abt 1301 - 30 Jan 1343
 Abt 1265 - 18 Oct 1319/20
 Abt 1270 - 1345
Family Group
Family Group
 Abt 1240 - 1287
 Abt 1220 - 12 Aug 1265
 Abt 1225 -
 Abt 1190 - 1217