Biography of Thomas Courtenay 5th or 13th Earl Devon 1414-1458

Before 1414 [his father] Hugh Courtenay 4th or 12th Earl Devon (age 24) and [his mother] Anne Talbot Countess Devon (age 20) were married. He the son of [his grandfather] Edward Courtenay 3rd or 12th Earl Devon (age 56) and [his grandmother] Maud Camoys Countess Devon. They were third cousins. He a great x 3 grandson of King Edward I of England. She a great x 3 granddaughter of King Edward I of England.

In 1414 Thomas Courtenay 5th or 13th Earl Devon was born to [his father] Hugh Courtenay 4th or 12th Earl Devon (age 25) and [his mother] Anne Talbot Countess Devon (age 21).

On 5th December 1419 [his grandfather] Edward Courtenay 3rd or 12th Earl Devon (age 62) died. His son [his father] Hugh (age 30) succeeded 4th Earl Devon, 7th Baron Okehampton, 5th Baron Courtenay. [his mother] Anne Talbot Countess Devon (age 26) by marriage Countess Devon.

Around 1420 Thomas Courtenay 5th or 13th Earl Devon (age 6) and Margaret Beaufort Countess Devon (age 11) were married. She the daughter of John Beaufort 1st Marquess Somerset and Dorset and Margaret Holland Duchess Clarence (age 35). He the son of Hugh Courtenay 4th or 12th Earl Devon (age 31) and Anne Talbot Countess Devon (age 27). They were third cousins. He a great x 4 grandson of King Edward I of England. She a great granddaughter of King Edward III of England.

On 16th June 1422 [his father] Hugh Courtenay 4th or 12th Earl Devon (age 33) died. His son Thomas (age 8) succeeded 5th Earl Devon, 8th Baron Okehampton, 6th Baron Courtenay. [his wife] Margaret Beaufort Countess Devon (age 13) by marriage Countess Devon.

In or before 1432 [his brother-in-law] Edmund Beaufort 1st or 2nd Duke of Somerset (age 25) and Eleanor Beauchamp Duchess Somerset (age 23) were married. She the daughter of Richard Beauchamp 13th Earl Warwick (age 49) and Elizabeth Berkeley Countess Warwick. He the son of John Beaufort 1st Marquess Somerset and Dorset and [his mother-in-law] Margaret Holland Duchess Clarence (age 46). They were third cousin once removed. He a great grandson of King Edward III of England. She a great x 4 granddaughter of King Edward I of England.

In 1432 [his son] Thomas Courtenay 6th or 14th Earl Devon was born to Thomas Courtenay 5th or 13th Earl Devon (age 18) and [his wife] Margaret Beaufort Countess Devon (age 23). He a great x 2 grandson of King Edward III of England. He married after 9th September 1456 his fifth cousin Mary Capet Countess Devon, daughter of Charles Valois Anjou Count Maine.

In 1435 [his son] John Courtenay 7th or 15th Earl Devon was born to Thomas Courtenay 5th or 13th Earl Devon (age 21) and [his wife] Margaret Beaufort Countess Devon (age 26) at Okehampton, Devon. He a great x 2 grandson of King Edward III of England. He married before 2nd February 1461 his second cousin once removed Laura Bourchier Countess Devon, daughter of Henry Bourchier 2nd Count of Eu 1st Earl Essex and Isabel York Countess Eu and Essex.

In 1436 [his brother-in-law] Edmund Beaufort 1st or 2nd Duke of Somerset (age 30) was appointed 150th Knight of the Garter by King Henry VI of England and II of France (age 14).

In 1439 [his brother-in-law] John Beaufort 1st Duke of Somerset (age 36) and Margaret Beauchamp Duchess Somerset (age 29) were married. She by marriage Countess Somerset. He the son of John Beaufort 1st Marquess Somerset and Dorset and [his mother-in-law] Margaret Holland Duchess Clarence (age 54). They were fifth cousin once removed. He a great grandson of King Edward III of England.

Before 21st September 1439 James "Black Knight of Lorn" Stewart (age 44) and [his sister-in-law] Joan Beaufort Queen Consort Scotland (age 35) were married. She the daughter of John Beaufort 1st Marquess Somerset and Dorset and [his mother-in-law] Margaret Holland Duchess Clarence (age 54).

Around 1440 [his brother-in-law] John Beaufort 1st Duke of Somerset (age 37) was appointed Admiral of the Sea.

On 16th January 1441 [his mother] Anne Talbot Countess Devon (age 48) died.

In August 1441 [his brother-in-law] Edmund Beaufort 1st or 2nd Duke of Somerset (age 35) was created 1st Earl Dorset. Eleanor Beauchamp Duchess Somerset (age 32) by marriage Countess Dorset. The date possibly 1441.

In 1442 [his brother-in-law] Edmund Beaufort 1st or 2nd Duke of Somerset (age 36) was created 1st Marquess Dorset. Eleanor Beauchamp Duchess Somerset (age 33) by marriage Marchioness Dorset.

In 1443 [his brother-in-law] John Beaufort 1st Duke of Somerset (age 40) was appointed 156th Knight of the Garter by King Henry VI of England and II of France (age 21).

On 28th August 1443 [his brother-in-law] John Beaufort 1st Duke of Somerset (age 40) was created 1st Duke Somerset, 1st Earl Kendal by King Henry VI of England and II of France (age 21). Margaret Beauchamp Duchess Somerset (age 33) by marriage Duchess Somerset.

On 30th May 1444 [his brother-in-law] John Beaufort 1st Duke of Somerset (age 41) committed suicide. Suicide not certain but likely. Duke Somerset, Earl Kendal extinct. His brother [his brother-in-law] Edmund (age 38) succeeded 4th Earl Somerset. Eleanor Beauchamp Duchess Somerset (age 35) by marriage Countess Somerset.

His only child Margaret Beaufort Countess Richmond aged one was his heir. King Henry VI of England and II of France (age 22) granted her wardship to William "Jackanapes" de la Pole 1st Duke of Suffolk (age 47) who married her to his son John de la Pole 2nd Duke of Suffolk (age 1).

On 15th July 1445 [his sister-in-law] Joan Beaufort Queen Consort Scotland (age 41) died at Dunbar Castle, Dunbar. She was buried at Perth Charterhouse.

On 31st March 1448 [his brother-in-law] Edmund Beaufort 1st or 2nd Duke of Somerset (age 42) was created 1st Duke Somerset. He is sometimes referred to as the 2nd Duke Somerset since his brother [his brother-in-law] John Beaufort 1st Duke of Somerset was the 1st Duke Somerset of the first creation. Edmund didn't inherit the Dukedom from his brother; it was a new creation. His did inherit the Earldom.

In 1449 [his wife] Margaret Beaufort Countess Devon (age 40) died.

Around 1453 Thomas Courtenay 5th or 13th Earl Devon (age 39) was imprisoned at Tower of London [Map].

After 9th September 1456 [his son] Thomas Courtenay 6th or 14th Earl Devon (age 24) and [his daughter-in-law] Mary Capet Countess Devon (age 10) were married at Coventry, Warwickshire [Map]. She by marriage Countess Devon. She the illegitmate daughter of Charles Valois Anjou Count Maine (age 42). He the son of Thomas Courtenay 5th or 13th Earl Devon (age 42) and [his former wife] Margaret Beaufort Countess Devon. They were fifth cousins. He a great x 2 grandson of King Edward III of England.

In 1458 Thomas Courtenay 5th or 13th Earl Devon (age 44) died at Yattendon Castle [Map]. He was buried at Courtenay Chantry Chapel Exeter Cathedral. His son Thomas (age 26) succeeded 6th Earl Devon, 9th Baron Okehampton, 7th Baron Courtenay.

[his son] Henry Courtenay was born to Thomas Courtenay 5th or 13th Earl Devon and [his former wife] Margaret Beaufort Countess Devon. He a great x 2 grandson of King Edward III of England.

[his daughter] Joan Courtenay was born to Thomas Courtenay 5th or 13th Earl Devon and [his former wife] Margaret Beaufort Countess Devon. She a great x 2 granddaughter of King Edward III of England. She married (1) 1471 her third cousin twice removed Roger Clifford, son of Thomas Clifford 8th Baron Clifford and Joan Dacre Baroness Clifford, and had issue (2) before 8th October 1489 William Knyvet.