Joan de Ferrers

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ChartsAncestors of Adele La Force
Ancestors of Harriet Hanson Robinson
Joan de Ferrers, daughter of Sir William de Ferrers, Knt., 5th Earl of Derby and Sibyl Marshal, died before October 1267.1

Joan married (1) John de Mohun, son of Sir Reynold de Mohun, Knt. and Hawise Fitz Geoffrey, after 1245;1 she married (2) Sir Robert d'Aguillon, Knt., son of William d'Aguillon and Joan Fitz Peter, before 30 August 1256.1

Family 1

John de Mohun d. 1254
  • Robert de Mohun1 b. aft. 1246
  • John de Mohun1 b. abt. 1248, d. 11 Jun 1279

Family 2

Sir Robert d'Aguillon, Knt. d. 15 Feb 1285/86
This person was last edited on2 Jul 2021


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 4:101 (Mohun 9), further cited as Richardson, Royal Ancestry.
  2. [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), 1:417 (Bardolf), further cited as CP.