Colonel Sackville Tufton was the son of John Tufton, 2nd Earl of Thanet and his second wife Margaret Sackville. He married Elizabeth, daughter of Ralph Wilbraham of Newbottle, Northumberland. They had twelve children:John Tufton Sackville Tufton, 7th Earl of Thanet (1688–1753) John Tufton Wilbraham Tufton Thomas Tufton Richard Tufton Catharine Tufton Elizabeth Tufton Margaret Tufton Christian Tufton Mary Tufton Elizabeth Tufton