Margaret de Monthermer, Baroness of Monthermer - Pedigree | FamilyCentral
 14 Oct 1329 - 24 Mar 1394/95
 17 Jun 1239 - 7 Jul 1307
 1 Oct 1206 - 16 Nov 1272
 Abt 1217 - 24 Jun 1291
 5 Aug 1201 - 30 May 1252
 Abt 1216 - 15 Mar 1279