http://en.wikipedia.org/wiki/Edmund_FitzAlan,_9th_Earl_of_Arundel

http://thepeerage.com/p356.htm#i3560

Citations:

[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 244, says that she was the daughter of the 10th Earl, not 9th Earl of Arundel. Hereinafter cited as The Complete Peerage.

[S108] Medieval Genealogy, corrections and additions to the Complete Peerage, online http://www.medievalgenealogy.org.uk/cp/. Hereinafter cited as Medieval Genealogy.

[S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 596. Hereinafter cited as The Complete Peerage, Volume XIV.

[S6] Cokayne, and others, The Complete Peerage, volume I, page 242.