Thomas Beaufort, Duke of Exeter

Thomas Beaufort
Duke of Exeter
Arms of Thomas Beaufort, Duke of Exeter
Bornc. January 1377
Château de Beaufort, Anjou, France
Died31 December 1426 (age 49 or 50)
Greenwich manor, Kent, England
BuriedBury St Edmunds Abbey, Suffolk
FamilyBeaufort
SpouseMargaret Neville of Hornby
IssueHenry Beaufort (died in infancy)
FatherJohn of Gaunt
MotherKatherine Swynford
OccupationLord Chancellor
Lord High Admiral
Admiral of the North and West
Admiral of the North
Captain of Calais

Thomas Beaufort, Duke of Exeter (c. January 1377 – 31 December 1426) was an English military commander during the Hundred Years' War, and briefly Chancellor of England. He was the third of the four children born to John of Gaunt, Duke of Lancaster, and his mistress Katherine Swynford. To overcome their problematic parentage, his parents were married in 1396, and he and his siblings were legitimated in 1390 and again in 1397. He married the daughter of Sir Thomas Neville (died 1387) of Hornby, Margaret Neville (born c. 1384). They had one son, Henry Beaufort, who died young.