William Martin, Knight - Pedigree | FamilyCentral
 1294 - Bef 4 Apr 1326
 1257 - Aft Feb 1321/22
 Abt 1257 -
 Abt 1230 -
 Abt 1249 - 1314
 Abt 1225 - 22 May 1259
 Abt 1228 - 12 Mar 1298/99
 Abt 1200 - 24 Mar 1254
  - 27 Apr 1245
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