Isabel (…)

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ListsGenealogy Notes
Isabel (…), whose ancestry is unknown (or not traced here), married, probably as his 2nd wife, Sir Edmund Deincourt, Knt., 1st Lord Deincourt, son of Sir John Deincourt, Knt. and Agnes de Neville.1,2,3

Although the Complete Peerage and History of Dunster call Isabel a daughter of Reynold Mohun and Isabel de Ferrers, it's clear that relationship is false, as Isabel Ferrers' issue "failed" in 1324. Isabel "Mohun" is not listed in Royal Ancestry, and the issue is still unresolved. Richardson suggests she is possibly the daughter of Reynold's son John, and such a relationship would explain many things, but there's no evidence of it. In an earlier msg, he writes, "The net result is that we are still left clueless as to the identity of Edmund Deincourt's wife who was mother of his children."3,4,1
This person was last edited on9 May 2019


  1. [S2054] George Edward Cokayne, The Complete Peerage: Or a History of the House of Lords and All Its Members From the Earliest Times: Revised and Much Enlarged, 13 in 14 vols. (London, England: The St. Catherine Press, 1910-1940), 4:120 (sub Deincourt), further cited as CP.
  2. [S748] Douglas Richardson, "Deincourt uncertainties", soc.genealogy.medieval, newsgroup, 1/30/2002,, accessed April 2019.
  3. [S748] Douglas Richardson, "A Deincourt-Mohun Alternative ( Was Re: Deincourt uncertainties)", soc.genealogy.medieval, 1/31/2002, accessed April 2019.
  4. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 4:100 (Mohun 8), further cited as Richardson, Royal Ancestry.