John Fitz William - Pedigree | FamilyCentral
 Abt 1298 - 10 Aug 1349
 Abt 1254 - Abt 1342
 Abt 1268 - Abt 1324
  - 6 Jan 1325/26
 1243 -
 1206 - 20 Jan 1256/57
 Abt 1226 - 26 Nov 1260
Family Group
 Abt 1193 - 24 Mar 1254
 9 Oct 1200 - 17 Jan 1239/40