Margaret de Beaumont - Pedigree | FamilyCentral
 Abt 1154 - 19 Jan 1234/35
 Abt 1130 - 7 Sep 1190
 Abt 1134 - 8 Apr 1212
 Abt 1062 - 1118
 Abt 1066 -
 Abt 1032 - 22 Feb 1098
 1037 - 11 Jul 1091
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