Sir John de Swinton, Knt.

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Sir John de Swinton, Knt., whose ancestry is unknown (or not traced here), died at the Battle of Halidon Hill, Northumberland, England, 14 September 1402.1

John married, as her 2nd husband, Margaret Stewart, Countess of Mar, daughter of Sir John Stewart, Knt., 1st Earl of Angus and Margaret Abernethy, between 1385 and 27 July 1388.1


Margaret Stewart, Countess of Mar d. bef. 22 Nov 1393
This person was last edited on14 Jun 2021


  1. [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.