Sir William de Fiennes, Chev.

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Sir William de Fiennes, Chev., son of Sir Engurerrand de Fiennes, Knt., seigneur of Fiennes and Isabeau de Condé, was slain at the Battle of Courtrai, 11 July 1302.1

William married Blanche de Brienne, daughter of Jean de Brienne, Butler of France and Jeanne de Châteaudun, between 18 January 1265/66 and February 1266/67.1,2

For more information on the Battle of Courtrai (also known as the Battle of the Golden Spurs), please see this Wikipedia article.


Blanche de Brienne d. aft. 1285
This person was last edited on14 Apr 2021


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 1:472 (Boulogne 9), further cited as Richardson, Royal Ancestry.
  2. [S520] Frederick Lewis Weis, Walter Lee Sheppard Jr., William R. Beall and Kaleen E. Beall, Ancestral Roots of Certain American Colonists Who Came to America before 1700… ., 8th ed. (Baltimore: Genealogical Publishing Co., 2004), 120-31, further cited as Weis, Sheppard, Beall, and Beall, Ancestral Roots, 8th ed.
  3. [S520] Weis, Sheppard, Beall, and Beall, Ancestral Roots, 8th ed., 120-30.