Baron Hugh de Grandmesnil
(Cir 1006-1094)
Adeliza Beaumont-sur-l'Oise
William de Say
Agnes de Grandmesnil
William de Say


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Beatrice de Mandeville

William de Say

  • Marriage: Beatrice de Mandeville

bullet  General Notes:

See notes in other William De Say (father):
But the known Pedigree originates with another William De Say; granted his (probably dead) father's lands in a charter of the Empress Maud between Christmas 1141 and June 1142; Joined his brother-in-law Geoffrey De Mandeville, 1st Earl of Essex of the 1140 cr (See Essex, E, preliminary remarks), in rebellion against Stephen 1144; married Beatrice (died 19 April in 1197 or some year before it, daughter of William De Mandeville, sister of 1st Earl of Essex and divorced wife of Hugh Talebot, and was allegedly killed in an attack on Burwell Castle, Cambridgeshire, along with his brother-in-law 1st Earl of Essex August 1144, though he may well have died later, leaving:

William married Beatrice de Mandeville, daughter of William de Mandeville and Unknown. (Beatrice de Mandeville died on 19 Apr 1197.)

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