William de [Earl of Essex] Mandeville - Pedigree | FamilyCentral
 Abt 1176 - 15 Jan 1226/27
 Abt 1162 - 14 Oct 1213
 Abt 1169 - 19 Apr 1197
 Bef 1160 - 1 Aug 1177
 Bef 1160 -
 1143 - 4 Dec 1214
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