Charles Sackville, second duke of Dorset was the son of the first duke, Lionel Cranford Sackville. He attended Westminster School and Christ Church Oxford (created M.A. 1730) and took the grand tour with Joseph Spence (1730-33). He was M.P. for East Grinstead (1734-41, 1761-65), Sussex (1742-47) and Old Sarum (1747-54). Sackville, who was intimate with Prince Frederick, was lord of the Treasury (1743-47), master of horse to the Prince of Wales (1747) and privy councilor (1766). He makes a number of appearances in Horace Walpole's correspondence.
A treatise concerning the militia. 1752.