Sir Thomas de Clifford, 6th Baron de Clifford, also 6th Lord of Skipton (c. 1363 – 18 August 1391) was a Knight of The Chamber, hereditary Sheriff of Westmorland

Westmorland

Westmorland is an area of North West England and one of the 39 historic counties of England. It formed an administrative county from 1889 to 1974, after which the entirety of the county was absorbed into the new county of Cumbria.-Early history:...

, Governor of Carlisle Castle

Carlisle Castle

Carlisle Castle is situated in Carlisle, in the English county of Cumbria, near the ruins of Hadrian's Wall. The castle is over 900 years old and has been the scene of many historical episodes in British history. Given the proximity of Carlisle to the border between England and Scotland, it...

, and Warden of the East Marches.

He was the son of Roger de Clifford, 5th Baron de Clifford

Roger de Clifford, 5th Baron de Clifford

Roger de Clifford, 5th Baron de Clifford, ninth Lord Clifford, fifth Baron of Westmoreland , was the son of Robert de Clifford, 3rd Baron de Clifford , second son of Robert de Clifford, 1st Baron de Clifford , the founder of the northern branch of the family. His mother was Isabella Roger de...

 and inherited his estates and titles on his father's death in 1389.
He was summoned to Parliament

Parliament of England

The Parliament of England was the legislature of the Kingdom of England. In 1066, William of Normandy introduced a feudal system, by which he sought the advice of a council of tenants-in-chief and ecclesiastics before making laws...

 by Writ from December 6, 1389. He was hereditary High Sheriff of Westmorland

High Sheriff of Westmorland

Westmorland in North West England no longer exists as a county, the original core of it having merged into the modern district of Eden within the county of Cumbria....

 from 1389 until his own death in 1391.

He married before 1379 Elizabeth (died March 1424), daughter of Thomas de Ros

Thomas de Ros, 5th Baron de Ros

Thomas de Ros, 5th Baron de Ros of Helmsley was the son of William de Ros, 3rd Baron de Ros, and the brother of William de Ros, 4th Baron de Ros....

 of Helmesley, by Beatrice, daughter of Sir Ralph de Stafford, 1st Earl of Stafford, KG

Order of the Garter

The Most Noble Order of the Garter, founded in 1348, is the highest order of chivalry, or knighthood, existing in England. The order is dedicated to the image and arms of St...

, by whom he had issue. He was succeeded by his eldest son John Clifford, 7th Baron de Clifford

John Clifford, 7th Baron de Clifford

Sir John Clifford, 7th Baron de Clifford, also 7th Lord of Skipton, KG , hereditary High Sheriff of Westmorland was an English peer.-Life:...

.

Lord Clifford is often styled in documents "King's kinsman". He died in Europe and his place of burial is unknown.

Issue

• John Clifford, 7th Baron de Clifford
  John Clifford, 7th Baron de Clifford
  Sir John Clifford, 7th Baron de Clifford, also 7th Lord of Skipton, KG , hereditary High Sheriff of Westmorland was an English peer.-Life:...
  
  , married Lady Elizabeth Percy
  Lady Elizabeth Percy
  Lady Elizabeth Percy was the daughter of Henry Hotspur Percy and Lady Elizabeth Mortimer.She married John Clifford, 7th Baron de Clifford in 1404. They had the following children:...
  
   , daughter of Henry 'Hotspur' Percy by Elizabeth, daughter of Edmund Mortimer, 3rd Earl of March.
• Matilda Clifford married 1) John Neville, 6th Baron Latimer
  Baron Latimer
  The title Baron Latimer or Latymer has been created, by the definitions of modern peerage law, four times in the Peerage of England. Of these, one was restored from abeyance in 1913; one is forfeit; the other two are dormant, although their heir is well known.-Name and title:All of these, and the...
  
  ; 2) Richard of Conisburgh, 3rd Earl of Cambridge
  Richard of Conisburgh, 3rd Earl of Cambridge
  Richard of Conisburgh, 3rd Earl of Cambridge was the younger son of Edmund of Langley, 1st Duke of York and Isabella of Castile....