Sir Arthur Horace Penn, GCVO, MC (20 April 1886 – 30 December 1960), soldier and courtier, was a member of the Royal Household of the Queen Elizabeth The Queen Mother.
He was educated first at Eton, and later at Trinity College, Cambridge where he read law, and was called to the bar of the Inner Temple in 1910.
He was awarded the Military Cross and the Croix de Guerre for services in World War I.
[2] As a senior member of the royal household, he was a leading guest at the 1947 wedding of Princess Elizabeth and Philip, Duke of Edinburgh.
[1] Penn was chairman of the billbrokers King and Shaxson, Ltd; Steward of the Courts at Eton; and he was the best man at the marriage of Harold Macmillan to Lady Dorothy Cavendish in 1920.