Sackville, Lionel Cranfield, 1st Duke of Dorset (1688 -1765)
Lionel Cranfield Sackville was the only son of Charles Sackville, 6th Earl of Dorset and his second wife, Mary Compton, younger daughter of James, 3rd Earl of Northampton. He was educated at Westminster School. He succeeded his father in 1706. He was Constable of Dover Castle and Warden of the Cinque Ports 1708 1713, Envoy Extraordinary to Hanover on the death of Queen Anne, Groom of the Stole, 1st Lord of the Bedchamber 1714. He became a Knight of the Garter 9 December 1714. On the 13 June 1720 he was created Duke of Dorset. His other appointments were Lord Lieutenant of Ireland 1730 1737 and 1750-1755, and Lord President of the Council 1745 1750. He married, in January 1709, Elizabeth, daughter of Lieutenant General Walter Philip Colyear, and niece of David, 1st Earl of Portmore .The library of Elizabeth, Duchess of Dorset was sold by T. Evans of Locke’s Head, Covent Garden on 6 March 1769. The library of George Germaine-Sackville, first Viscount Sackville was sold by auction by Riley of Pall-Mall 28 June 1786.