Sir William Douglas, Knt., 1st Earl of Douglas

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Sir William Douglas, Knt., 1st Earl of Douglas, son of Sir Archibald Douglas, Knt. and Beatrice Lindsay, was born about 1330.1 He died of a fever at Douglas Castle, Scotland, before 24 April 1384, and was buried at Melrose, Scotland.1

William married Margaret Stewart, Countess of Mar, daughter of Sir John Stewart, Knt., 1st Earl of Angus and Margaret Abernethy, before 13 November 1357.2

He also had one known mistress, Margaret Stewart, Countess of Angus, by whom he had a son, and one or more unknown mistresses, by whom he had two daughters.2

For more information about Sir William Douglas, Knt., 1st Earl of Douglas, please see this Wikipedia article.

Family 1

  • Joan de Douglas2
  • Margaret de Douglas2

Family 3

Margaret Stewart, Countess of Mar d. bef. 22 Nov 1393
  • Sir James Douglas, Knt., Earl of Douglas and Mar2
  • Isabella Douglas, Countess of Mar2 d. 1408
This person was last edited on14 Jun 2021


  1. [S1972] Neil D. Thompson and Charles M. Hansen, The Ancestry of Charles II, King of England: A Medieval Heritage [Twelve Generations] (Saline, Michigan: McNaughton & Gunn, 2012), #2176, further cited as Thompson and Hansen, The Ancestry of Charles II.
  2. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 3:150 (Groby 8.ii.b), further cited as Richardson, Royal Ancestry.
  3. [S1970] Adrian Benjamin Burke, "The Livingston Ancestry of the Duncanson Sisters of New Netherland: Pt II of III: Identifying their maternal great-grandmother Margaret Forrester," The Genealogist 27 (Fall 2013): 162-181, at 175, further cited as Burke, "The Livingston Ancestry, Part II."
  4. [S1972] Thompson and Hansen, The Ancestry of Charles II, #1088, 2177.