Thomas de Ros, 5th Baron de Ros of Helmsley (1338 – 8 June 1383) was the son of William de Ros, 3rd Baron de Ros

William de Ros, 3rd Baron de Ros

William de Ros, 3rd Baron de Ros of Helmsley was the son of William de Ros, 2nd Baron de Ros.As 3rd Baron de Ros of Hamlake, Werke, Trusbut & Belvoir, he was summoned to Parliament during the reigns of Edward II and Edward III of England. In 1321 he completed the religious foundation which his...

, and the brother of William de Ros, 4th Baron de Ros

William de Ros, 4th Baron de Ros

William de Ros, 4th Baron de Ros of Helmsley was a military commander under Edward, the Black Prince. He was knighted by the Black Prince in 1346, having helped raise the siege of Arguillon...

.

He married Beatrice Stafford, daughter of the earl of Stafford

Ralph Stafford, 1st Earl of Stafford

Ralph de Stafford, 2nd Baron Stafford, 1st Earl of Stafford, KG was an English nobleman and notable soldier during the Hundred Years War against France.-Early life and family:...

, and she brought him the manor of Braunston in her dowry. Their children were:

• John de Ros, 6th Baron de Ros
  John de Ros, 6th Baron de Ros
  John de Ros, 6th Baron de Ros of Helmsley, KB . He took a prominent part in the pageantry at the coronation of the ill-advised, and ill-fated Richard II, then only years old. Following the coronation he was made a Knight of the Bath. While on a pilgrimage to Jerusalem he died in Paphos, Cyprus. His...
  
  
• William de Ros, 7th Baron de Ros
  William de Ros, 7th Baron de Ros
  William de Ros, 7th Baron de Ros of Helmsley, KG was Lord Treasurer of England.He was a son of Thomas de Ros, 5th Baron de Ros and Beatrice Stafford, daughter of Ralph Stafford, 1st Earl of Stafford. He was also a younger brother of John de Ros, 6th Baron de Ros.-Career:His older brother died...
  
  
• Sir Thomas de Ros
• Margaret de Ros, married Reginald Grey, 3rd Baron Grey de Ruthyn
  Reginald Grey, 3rd Baron Grey de Ruthyn
  Reginald Grey, 3rd Baron Grey de Ruthyn , a powerful Welsh marcher lord, succeeded to the title on his father Reginald's death in July 1388.- Lineage :...
  
  
• Elizabeth de Ros, married Thomas de Clifford, 6th Baron de Clifford
  Thomas de Clifford, 6th Baron de Clifford
  Sir Thomas de Clifford, 6th Baron de Clifford, also 6th Lord of Skipton was a Knight of The Chamber, hereditary Sheriff of Westmorland, Governor of Carlisle Castle, and Warden of the East Marches....
  
  

In 1364, he accompanied the king of Cyprus to the Holy Land; and was in the French wars, from 1369 to 1371. He was summoned to parliament by both King Edward III of England

Edward III of England

Edward III was King of England from 1327 until his death and is noted for his military success. Restoring royal authority after the disastrous reign of his father, Edward II, Edward III went on to transform the Kingdom of England into one of the most formidable military powers in Europe...

 and King Richard II of England

Richard II of England

Richard II was King of England, a member of the House of Plantagenet and the last of its main-line kings. He ruled from 1377 until he was deposed in 1399. Richard was a son of Edward, the Black Prince, and was born during the reign of his grandfather, Edward III...

. He died at Uffington, and was buried at Rievaulx Abbey

Rievaulx Abbey

Rievaulx Abbey is a former Cistercian abbey headed by the Abbot of Rievaulx. It is located in Rievaulx , near Helmsley in North Yorkshire, England.It was one of the wealthiest abbeys in England and was dissolved by Henry VIII of England in 1538...

. His widow became the wife of Sir Richard Burley.