John Warren, Earl of Warren - Pedigree | FamilyCentral
 30 Jun 1286 - 30 Jun 1347
 Abt 1260 - 15 Dec 1286
 Abt 1264 - 21 Nov 1293
 Abt 1240 - Bef 7 Sep 1296
 Abt 1231 - 7 Sep 1317
 Abt 1192 - 27 Mar 1248
 Abt 1183 - 1249
 Abt 1180 - 31 May 1245/46
 Abt 1184 - 23 Dec 1263
 Abt 1178 - 11 Feb 1222/23
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