High Quality Content by WIKIPEDIA articles! Angus Alan Douglas Douglas-Hamilton, 15th Duke of Hamilton and 12th Duke of Brandon (born 13 September 1938), is a Scottish nobleman. He was styled Earl of Angus between 1938 and 1940, and Marquess of Douglas and Clydesdale between 1940 and 1973, and is currently styled His Grace The Duke of Hamilton and Brandon. The son of the 14th Duke of Hamilton and Lady Elizabeth Percy, daughter of the 8th Duke of Northumberland, he was (like his father) educated at Eton and Balliol College, Oxford. He followed his father's interest in flying, becoming a Flight Lieutenant with the Royal Air Force until he was invalided out in 1967. He gained a Commercial Pilot's Licence the same year and was a test pilot for Scottish Aviation Ltd, a company his father had been associated with. He is a member of the Queen's Bodyguard for Scotland, an honorary member of the Royal Scottish Pipers Society and Patron of the British Airways Pipe Band. He is a Knight of St John. He is Hereditary Keeper of the Palace of Holyroodhouse.