Mabel de Bellême1 
Children of Mabel de Bellême and Roger de Montgomery, Earl of Shrewsbury
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume I, page 230. Hereinafter cited as The Complete Peerage.
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 40. Hereinafter cited as Britain’s Royal Families.
- [S6] Cokayne, and others, The Complete Peerage, volume I, page 233.
William Talvas, Signeur d’Alençon1 
Child of William Talvas, Signeur d’Alençon
- Mabel de Bellême+1 d. 2 Dec 1079
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 40. Hereinafter cited as Britain’s Royal Families.
Adelaide (?)1
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 40. Hereinafter cited as Britain’s Royal Families.
Guillaume IV, Comte de Toulouse1 
He succeeded as the Comte de Toulouse in 1061.2
Child of Guillaume IV, Comte de Toulouse and Emma de Mortain
- Philippa de Toulouse+ d. 28 Nov 1117
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 40. Hereinafter cited as Britain’s Royal Families.
- [S38] John Morby, Dynasties of the World: a chronological and genealogical handbook (Oxford, Oxfordshire, U.K.: Oxford University Press, 1989), page 88. Hereinafter cited as Dynasties of the World.
Eudo de Capello, Vicomte de la Côtentin1
He gained the title of Vicomte de la Côtentin.1
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 40. Hereinafter cited as Britain’s Royal Families.
Henry, Count of Séez1
He gained the title of Count of Séez.1
Child of Henry, Count of Séez and Isabella de Burgo
- Saint Osmund (?)2 d. 1099
Saint Osmund (?)1 
He held the office of Bishop of Salisbury.1
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 41. Hereinafter cited as Britain’s Royal Families.
Rosemary Alexandra Lancaster1
From 1990, her married name became Cavendish.1
Children of Rosemary Alexandra Lancaster and Ronald Simon Constantine Cavendish
- Nicholas Peter Lancaster Cavendish1 b. 1993
- Maia Marita Cavendish1 b. 20 Mar 1995
- [S37] BP2003 volume 1, page 1128. See link for full details for this source. Hereinafter cited as. [S37]
Marianne Caton1 
From 29 October 1825, her married name became Wellesley. She held the office of Lady of the Bedchamber to the Queen Dowager Adelaide.2
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume IX, page 238. Hereinafter cited as The Complete Peerage.
- [S6] Cokayne, and others, The Complete Peerage, volume IX, page 239.
Robert Patterson1 
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume IX, page 238. Hereinafter cited as The Complete Peerage.
- [S9] Charles Kidd and David Williamson, editor, DeBretts Peerage and Baronetage (London, U.K.: DeBrett’s Peerage, 1999), volume 2, page 2972. Hereinafter cited as DeBretts Peerage, 1999.