John Beaufort Earl of Somerset
- Born: 25 Mar 1404, Westminster, London, Middlesex, England
- Christened: 25 Mar 1404
- Marriage: Margaret Beauchamp of Bletso
- Died: 27 May 1444 at age 40
John Beaufort, 1st Duke of Somerset was an English noble and military commander.
He was the second son of John Beaufort, 1st Earl of Somerset, and succeeded his elder brother Henry to become the 3rd Earl of Somerset in 1418.
The young earl fought in Henry V's 1419 campaigns in France. In 1421 he accompanied the king's younger brother Thomas of Lancaster to the fighting in Anjou. Thomas was killed at the Battle of Baugé and Somerset was captured.
He remained imprisoned for 17 years, and after being ransomed became one of the leading English commanders in France.
In 1443 he was created Duke of Somerset and Earl of Kendal, made a Knight of the Garter, and appointed Captain-General of Guyenne. However he proved a poor commander. He married Margaret Beauchamp of Bletso in 1439. His death in 1444 may have been due to suicide.
Children of John Beaufort:
1. Jacinda (c. 1434 \endash after 1469). Married Reginald Grey, Baron Grey de Wilton.
2. Thomasine Beaufort (before 1444 \endash c. 1494)
3. John of Somerset (c. 1444 \endash 1453)
Child of John Beaufort and Margaret Beauchamp of Bletso:
1. Lady Margaret Beaufort (May 31, 1443 \endash June 29, 1509), mother of Henry VII of England
John married Margaret Beauchamp of Bletso. (Margaret Beauchamp of Bletso was born about 1410 and died in 1482.)