William Cavendish, third Earl of Devonshire, was only ten years of age when his father died, and he was placed, as we have just said, under the care of Hobbes, who travelled and remained with him, and was, for the rest of his life, supported by the earl’s family. The earl married Elizabeth Cecil, daughter of the Earl of Salisbury, by whom he had two sons, William (who succeeded him), Charles, and one daughter. William, fourth Earl of Devonshire, before succeeding to the title, sat in the Long Parliament for Derbyshire, and, as a youth, he was one of the train-bearers to the king at his coronation. He was among the principal persons who brought about the “Glorious Revolution” of 1688, and the placing of William III. on the throne. He married Mary, daughter of the Duke of Ormonde, and had issue by her, William, his successor; Henry, James, and Elizabeth. His lordship was the rebuilder of Chatsworth, and was by William III. advanced to the dignity of Marquis of Hartington and Duke of Devonshire. He was succeeded in his titles and estates by his son. His Grace died in 1707, and his funeral sermon, preached by White Kennett, Bishop of Peterborough, has been many times printed, and is attached to the memoirs of the family of Cavendish by that prelate. William Cavendish, second Duke and fifth Earl of Devonshire, was Captain of the Yeomen of the Guard, and succeeded to all his father’s appointments, among which were Lord Steward of the Household, Privy Councillor, Lord Warden and Chief Justice in Eyre of all places north of the Trent, Lord-Lieutenant, K.G.; he was also constituted one of the regents of the kingdom. He married Rachel, daughter of William Lord Russell, and by her had issue, with several others, his successor, William, who became third Duke of Devonshire, and married Catherine, heiress of John Hoskins, by whom he had a numerous family. His Grace held many important posts in the State; among which were those of Lord Lieutenant of Ireland, Lord Lieutenant of Derbyshire, Lord Keeper of the Privy Seal, Lord Steward of the Household, and Lord Justiceship for the administration of Government during his Majesty’s absence. He was succeeded by his son—