Alix de [Countess of Norfolk] Avesnes - Pedigree | FamilyCentral
 Abt 1273 - 26 Oct 1317
 Abt 1247 - 22 Aug 1304
 Abt 1252 - 6 Apr 1311
 Apr 1218 - 24 Dec 1257
 Abt 1226 - 9 Apr 1283
 Abt 1220 - 25 Nov 1275
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