Charles Seymour, 6th Duke of Somerset, English politician, Lord President of the Council (d. 1748)

Charles Seymour, 6th Duke of Somerset (13 August 1662 – 2 December 1748), known by the epithet "The Proud Duke", was an English peer. He rebuilt Petworth House in Sussex, the ancient Percy seat inherited from his wife, in the palatial form which survives today. According to the Encyclopædia Britannica Eleventh Edition, he was a remarkably handsome man, and inordinately fond of taking a conspicuous part in court ceremonial; his vanity, which earned him the sobriquet of "the proud duke", was a byword among his contemporaries and was the subject of numerous anecdotes; Macaulay described him as "a man in whom the pride of birth and rank amounted almost to a disease".