4th Lord Helmsley, 5th Baron de Ros Sir Thomas de Ros

1337 - 1384  (47 years)

• Name	Sir Thomas de Ros  [1]
  Title	4th Lord Helmsley, 5th Baron de Ros
  Birth	13 Jan 1337	Stoke Albany, Northamptonshire, England   [1]
  Gender	Male
  Military - Old World	Went with King Edward II in his expeditions to Normandy in 1355, 1356 and 1359
  Occupation	Joint Warden of the Marches of Scotland
  Title	Lord Roos of Helmsely
  Death	8 Jun 1384	Uffington, Lincolnshire, England   [1]
  Burial	Helmsley, Yorkshire, England   [1]
  	(Rievaulx Abbey)
  Person ID	I15193	A Tree Called Smith
  Last Modified	21 Jul 2025

  
  

  Father	2nd Lord Ros, Knight of Helmsley and Hunsingore, Yorkshire, Wark, Northumberland Sir William de Ros,   b. 1288, Yorkshire, England d. 3 Feb 1343, Yorkshire, England (Age 55 years)
  Relationship	natural
  Mother	Margery de Badlesmere,   b. 1306, Badlesmere, Kent, England d. 18 Oct 1363, Helmsley, Yorkshire, England (Age 57 years)
  Relationship	natural
  Marriage	25 Nov 1316	Wark, Northumberland, England
  Family ID	F5527	Group Sheet  |  Family Chart

  
  

  Family	Beatrice de Stafford,   b. 1337, Staffordshire, England d. 14 Apr 1415, Yorkshire, England (Age 78 years)
  Marriage	1 Jan 1359	Stoke Albany, Northamptonshire, England
  Children	1. Lady Elizabeth de Ros,   b. 1363, Salisbury, Wiltshire, England d. 26 Mar 1424, Kendal, Westmorland, England (Age 61 years)  [Father: natural]  [Mother: natural]
  Family ID	F5557	Group Sheet  |  Family Chart
  Last Modified	21 Jul 2025

  
  

• Event Map

  Birth - 13 Jan 1337 - Stoke Albany, Northamptonshire, England Marriage - 1 Jan 1359 - Stoke Albany, Northamptonshire, England Death - 8 Jun 1384 - Uffington, Lincolnshire, England Burial - - Helmsley, Yorkshire, England  = Link to Google Earth

  
  

• Arms Icons & Insignia

  Arms-ROOS "Coat of arms of Robert de Roos, Lord of Hamlake Castle" by Rs-nourse - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:Coat_of_arms_of_Robert_de_Roos,_Lord_of_Hamlake_Castle.png#/media/File:Coat_of_arms_of_Robert_de_Roos,_Lord_of_Hamlake_Castle.png

  
  

  Biographies and Histories

  Bio-deROS Thomas Sir Thomas de Ros, Knight, Lord Roos of Helmsely, Yorkshire, of Chilham, Kent. Joint Warden of the Marches of Scotland.

  
  

• Sources

  [S6040] FindAGrave Old World, Thomas de Ros 1337-1384. Sir Thomas de Ros, Knight, Lord Roos of Helmsely, Yorkshire, of Chilham, Kent. Joint Warden of the Marches of Scotland. Third son of William de Roos by Margery de Badlesmere, grandson of Sir William de Roos, 1st Lord Helmsley, and Maud de Vaux, Sir Bartholomew de Badlesmere and Margaret de Clare. Second husband of Beatrice de Stafford, daughter of Sir Ralph de Stafford and Margaret de Audley. They married by royal licence dated 01 Jan 1359 and had four sons and two daughters; Sir John, Sir William, Thomas, Robert, Elizabeth (wife of Sir Thomas Clifford) and Margaret (wife of Sir Reynold Grey). Sir Thomas was the heir to his brother, William, 3rd Lord Helmsley in 1354. He would be along King Edward II in his expeditions to Normandy in 1355, 1356 and 1359, summoned to Parliament 1362 to 1383 and serve in France 1369 and 1374. Sir Thomas was ordered to reside on his lands in Ireland in 1368, along with his armed forces to prevent to loss and destruction of the country. Sir Thomas died estate at Uffington and buried at Rievaulx/Riveaulx.