Guillaume DE SAY of Sawbridgeworth
Robert DE RUMILLY Lord of Skipton and Harewood
(-Abt 1096)
Jourdain DE SAY seigneur d'Aunay-sur-Odon
(-After 1131)
(-After 1131)
William DE SAY
(-Abt 1155)


Family Links

Beatrice DE MANDEVILLE Countess of Essex

  • Willelm II DE SAI of Sawbridgeworth

William DE SAY

  • Born: Say, Normandy, France
  • Died: Abt 1155

   Research Notes:

Empress Matilda made various grants of property by charter dated to [1141/42] including a grant of lands "quæ fuerunt patris sui" to "Willelmus de Sai". He fought with his brother-in-law at the siege of Burwell Castle in Aug 1144. A manuscript listing of the abbots of Ramsey names "Walterus abbas", noting that he suffered many trials "in tempore Willelmi de Say et Galfredi de Mandeville, qui apud Borewelle interfecti fuerunt". Domesday Descendants cites a charter of St Neots which shows that William de Say survived his brother-in-law Geoffrey de Mandeville "by a few years". 1

   Marriage Information:

William married Beatrice DE MANDEVILLE Countess of Essex, daughter of William DE MANDEVILLE and Margaret DE RYE. (Beatrice DE MANDEVILLE Countess of Essex was born about 1105 in Manneville, Seine-Inferieure, Normandy, France and died on 19 Apr 1177 in Rickling, Saffron Walden, Essex, England.)


1 Foundation for Medieval Genealogy,

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