Charles Seymour, 6th Duke of Somerset, English politician, Lord President of the Council (born 1662)

Charles Seymour, 6th Duke of Somerset, KG, PC,, known by the epithet "The Proud Duke", was an English aristocrat and courtier. 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".

The Lord President of the Council is the presiding officer of the Privy Council of the United Kingdom and the fourth of the Great Officers of State, ranking below the Lord High Treasurer but above the Lord Keeper of the Privy Seal. The Lord President usually attends and is responsible for chairing the meetings of the Privy Council, presenting business for the approval of the Sovereign.