Ancestry of
John FitzWilliam

(–1421)

William FitzWilliam

View famous kin of William FitzWilliam

• • 3rd Great-grandfather of John FitzWilliam — 6th Generation
  • Ahnentafel No:
  • 32 
  • Father:
  • William FitzThomas 
  • Mother:
  • Agnes de Grey   
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  • Isabel Deincourt
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  John FitzWilliam (Ahnentafel No:16 )

• Sources for William FitzWilliam

  • ¹ Richardson, Douglas, Royal Ancestry: A Study in Colonial and Medieval Families, Salt Lake City, Utah: Douglas Richardson (2013), Vol. IV, p. 547.
  • ² Wurts, John S., Magna Charta, New York: Brookfield Publishing Company (1942), 1655.