The great-grandson of Lord Chancellor Clarendon, and the grandson of James II’s brother-in-law, Lord Rochester, Cornbury as a young man was inducted into the Jacobite councils by James II’s daughter, the Duchess of Buckingham, with whom he went to Rome to meet the Pretender secretly in January 1731. There he submitted to the Pretender a plan for gaining both the Whig and the Tory chiefs of the Opposition by promising them places and honours in the event of a restoration. The proposals were approved by the Pretender, who appointed him a lord of his bedchamber before his departure in April.
On returning to England Cornbury, who was badly off, refused a pension of £400 a year which had been obtained for him from the King by his brother-in-law, Lord Essex,
In the next Parliament Cornbury generally supported the Government. Before Walpole’s fall he voted against the opposition motion of 18 Dec. 1741 for papers on foreign affairs.
In 1748, disgusted with the state of public affairs and despairing of doing any good, Cornbury applied to George II for leave to go abroad for the recovery of his impaired health. He wrote to the King:
Family attachments, the habits and prejudices of first connections, and the consequences of these in several parts of my life, have deprived me of all the satisfaction I could have felt, and of all the advantages I must have found, in being more particularly attached to your Majesty’s service.
Add. 32715, f. 163.
Abroad he occupied himself with arranging to pay off the family debts by selling his estate of Cornbury. In December 1750 he returned to England to apply to the King for a peerage, which was readily granted, on the ground that
I felt ... the impossibility of my ever taking my seat again in the House of Commons with any satisfaction. I had seen too much of opposition, and knew too well the materials of which it was made, to put to sea again in that rotten vessel. I knew the inefficiency, and had long enough felt the difficulty of standing single and unconnected in that assembly. I believed too, that my health would not allow my attendance there, even if I could have attended with any satisfaction, and to any purpose.
On Cornbury’s elevation to the Lords he wrote to Arthur Onslow, the Speaker, to explain his reasons for leaving the Commons. He told Onslow that he regarded the Pelhams as the best available ministers and that if he had been beginning his career he would have connected himself with them, but that his previous political affiliations made it impossible for him to do so consistently with self-respect. He considered ‘party divisions and distinction the greatest national misfortune’ and deplored the lack of ‘authority in Government’, which, he told George II, was ‘felt in every corner of the country’ but could be remedied ‘without much difficulty. There belongs enough ... to the crown of England’.
Cornbury died of a fall from his horse in Paris, 26 Apr. 1753.
