Sir Thomas de Roos, Knt., 4th Lord Roos of Helmsley

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Sir Thomas de Roos, Knt., 4th Lord Roos of Helmsley, son of Sir William de Roos, Knt., 2nd Lord Roos of Helmsley and Margery de Badlesmere, was born at Stoke Albany, Northamptonshire, England, 13 January 1336/37.1 He died at Uffington, Lincolnshire, England, 9 June 1384.1

Thomas married, as her 2nd husband, Beatrice de Stafford, daughter of Sir Ralph de Stafford, K.G., 2nd Lord Stafford and Margaret de Audley, 1 January 1358/59.1


Beatrice de Stafford d. 13 Apr 1415
  • Elizabeth de Roos+1 d. Mar 1424
  • Thomas de Roos1
  • Robert de Roos1
  • Margaret de Roos1
  • Sir John de Roos, Knt., 5th Lord Roos of Helmsley1 b. bt 1364 - 1368, d. 6 Aug 1393
  • Sir William de Roos, Knt., 6th Lord Roos of Helmsley1 b. abt. 1370, d. 1 Sep 1414
This person was last edited on6 Jul 2019


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 4:494 (Roos 10), further cited as Richardson, Royal Ancestry.