Kevin Patrick Mostyn Family - Person Sheet
Kevin Patrick Mostyn Family - Person Sheet
NameIsabel DE DOUVRES, 21G Grandmother
MotherRohese DE DOUVRES (~1200-~1264)
Spouses
ChildrenThomas (~1245-1321)
Web Notes notes for Isabel DE DOUVRES
From "Complete Peerage England, Scotland, Ireland, Great Britain" by George E Cokayne, CS421.G2 1982, v IV, page 236, Desmond:
Thomas fitz Morice Fitzgerald married before 7 Feb 1283, Margaret, daughter of Sir Thomas de Berkeley of Berkeley, county Gloucester [Lord Berkeley], by Joan, daughter of William de Ferrers, Earl of Derby. The fact that Margaret was the King's cousin, restricts the inquiry as to her paternity to a very few families. Thomas fitz Morice made a fine with the King in 700 marks for his marriage, and Thomas de Berkeley bound himself to pay the whole of this sum. Fine Rolls, 12 Edw. I, m. 18: Close Roll, 12 Edw I, m. 4 d. Thomas de Berkeley had a daughter Margaret, to whom no husband has hitherto been assigned. The charter of 6 Feb 1291/2 is still among the muniments at Berkeley Castle. Further evidence is given elsewhere in these notes of a close connection between the Berkeleys and Thomas fitz Morice, his wife, and his sons. It may therefore be confidently asserted that Margaret, wife of Thomas fitz Morice, was daughter of Thomas de Berkeley, and consequently granddaughter of Isabel, called the King's cousins, daughter of Richard de Dovor, illegitimate son of King John.

Weis" "Ancestral Roots. . ." (26:28). Cokayne's "Complete Peerage" (Berkeley, p.127, note a), states that the old idea that she was dau. of Richard, Earl of Cornwall (RIN 2802*) (yr, br. of King HENRY III), or of his s. & h., Edmund, also Earl of Cornwall, is refuted in Smith'e "Berkeley's", v1, p.144.
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