Roger de Clifford, Baron Clifford - Pedigree | FamilyCentral
 21 Jan 1299/1300 - 23 Mar 1322
 1 Apr 1274 - 24 Jun 1314
 Abt 1276 - 1 Feb 1327
 Abt 1233 -
 Abt 1189 - 1232
 1178 - 1236
 1185 -
 1194 -
 25 Jul 1216 -
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