Henry Hugh Arthur FitzRoy Somerset, 10th Duke of Beaufort (4 April 1900 – 5 February 1984), styled Marquess of Worcester until 1924, was a peer, landowner, society figure and a great authority in the fields of horse racing and fox-hunting.

He was the youngest child and only son and heir of Henry Somerset, 9th Duke of Beaufort (1847–1924) by his wife Louise Emily Harford (1864–1945), a daughter of William Henry Harford, JP, DL, of Oldtown, Tockington, Gloucestershire,[2] and widow of Charles Frederic van Tuyll van Serooskerken (1859–1893), a Dutch baron, by whom she had two sons.

He was descended in the male line from Charles Somerset, 1st Earl of Worcester, 1st Baron Herbert (c.1460–1526), KG, an illegitimate son of Henry Beaufort, 3rd Duke of Somerset (1436–1464), 3rd in descent from John of Gaunt, 1st Duke of Lancaster (3rd surviving son of King Edward III) by his mistress (and later wife) Katherine Swynford.

[citation needed] After the International Horse Show of 1933 was abandoned, a new committee headed by the young Beaufort succeeded in re-establishing the event at Olympia in 1934.

[6] Beaufort was Master of the Horse (1936–1978) to three British sovereigns, Edward VIII, George VI and Elizabeth II.

James Lees-Milne, the conservationist, rented a house next door and records their poor relationship in his celebrated diaries—he thought the Duke was "feudal".

On Boxing Day 1984 animal-rights activists vandalised his grave but stopped short of their plan to disinter his remains and send his head to Princess Anne.

1461), created by writ, are able to pass via a female line and thus on the Duke's death they fell into abeyance between various descendants of his elder sister Lady Blanche Somerset (1897–1968), the wife, firstly, of John Eliot, 6th Earl of St Germans.