John Fitz Robert de [Baron Clavering] Clavering - Pedigree | FamilyCentral
 1266 - 13 Jan 1332
 Abt 1247 - 29 Apr 1310
 Abt 1199 - Aft 1256
 Abt 1203 - 10 Aug 1270
 Abt 1222 - Bef 20 Aug 1296
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