Sir John Fitzwilliam, Knt.

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Sir John Fitzwilliam, Knt., whose ancestry is unknown (or not traced here) died at Rouen, Normandy, France, 17 September 1421.1,2

John married Margaret Clarell, daughter of Thomas Clarell, Esq. and Matilda Montgomery, about 19 January 1410.2,3


Margaret Clarell d. bt 1465 - 1467
  • Eleanor Fitzwilliam4 b. aft. 1411, d. aft. 20 Jun 1475
  • John Fitzwilliam2 b. aft. 1411
  • Sir William Fitzwilliam, Knt.2 b. abt. 1416/17
This person was last edited on19 Jul 2021


  1. [S950] Joseph Foster, Pedigrees of the County Families of Yorkshire, Two vols. (London: W. Wilfred Head, 1874), 1:2 (Gascoigne), further cited as Foster, Pedigrees of Yorkshire.
  2. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 2:209 (Clarell 11.iii), further cited as Richardson, Royal Ancestry.
  3. [S950] Foster, Pedigrees of Yorkshire, 1:2 (Gascoigne), 1:1 (Clarell).
  4. [S1947] Richardson, Royal Ancestry, 4:514 (Ryther 14).