Isabel DE BEAUMONT
- Born: Between 1102 and 1107
- Died: After 1172, Carmarthen, Carmarthenshire, Wales
Guillaume de Jumièges records one illegitimate daughter of King Henry I as daughter of "Elizabeth sorore Waleranni comitis Mellenti", adding that she was unmarried at the time of writing. She lived with her mother. The Chronique de Normandie, based on le Roman de Rou, records that "Ysabelle, fille le Conte Gallerant de Meullent", seventh illegitimate daughter of King Henry I, did not marry. She witnessed two charters for her half-brother Richard FitzGilbert de Clare Earl of Pembroke, with her mother.
Guillaume de Jumièges records that "Giselbertus filius Gisleberti" married “sororem Waleranni comitis Mellenti...Elizabeth” by whom he had “filium primogenitum...Richardum”. Henry II King of England confirmed the donations to the nuns of Saint-Saens by "Isabel comitissa qui fuit uxor Gilleberti comitis" by charter dated to [1172/1182]. 1
Isabel married Gilbert "Strongbow" DE CLARE, Earl of Pembroke, son of Gilbert fitz Richard DE CLARE, Earl of Hertford, and Adelaide DE CLERMONT. (Gilbert DE CLARE was born on 21 Sep 1100 in Tunbridge, Kent, England, died on 6 Jan 1148/9 in Carmarthen, Carmarthenshire, Wales and was buried in Tintern Abbey, Chapel Hill, Monmouthshire, Wales.)