Laure de Montfort
Child of Laure de Montfort and Fernando de Castilla, Comte d’Aumale
- Jean de Ponthieu, Comte d’Aumale d. 1302
Luis de Castilla 
John Peuch1
Child of John Peuch
- Jennet Peuch1 d. 1768
- [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 297. Hereinafter cited as The Complete Peerage.
Leonor de Castilla 
Berenguela de Castilla 
She was a nun.
Maria de Castilla 
Dorothea Mathews1
She lived at Demarara, Ireland.1 Her married name became Bermingham.1
- [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 297. Hereinafter cited as The Complete Peerage.
Alfonso de Castilla 
Enrique de Castilla 
Anne Waddell1
Child of Anne Waddell and Edward Bermingham
- John Bermingham1 d. 1811
- [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 297. Hereinafter cited as The Complete Peerage.