Sir William Leybourne, Knt., Lord Leybourne

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ChartsAncestors of Adele La Force
Sir William Leybourne, Knt., Lord Leybourne, son of Roger de Leybourne, died before 12 March 1309/10.1

William married Juliane de Sandwich, daughter of Sir Henry de Sandwich, Knt., before 16 October 1265.2,1


Juliane de Sandwich d. 1327
This person was last edited on28 Jun 2021


  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), 7:637 (Leyburn), further cited as CP.
  2. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 4:565 (Say 9), further cited as Richardson, Royal Ancestry.
  3. [S2054] CP, 7:638 (Leyburn).
  4. [S1947] Richardson, Royal Ancestry, 3:655 (Lucy 10).