 Ailesbury was appointed a Knight of the Thistle on 20 May 1819.Lord Brudenell-Bruce was raised to a number of peerages being created 1st Viscount Savernake of Savernake Forest, 1st Earl Bruce of Whorlton, co. York and, 1st Marquess of Ailesbury on 17 July 1821, with many other peers for the occasion of George IV's coronation, after much lobbying of the new king's patronage, whose tutor his father had been.Ailesbury was lord and master of all he surveyed in the borough of Marlborough, holding virtually all the voters in his pocket, so alleged the whig reformer, Henry Hobhouse MP in the Great Reform bill debates of 1831.