 He was briefly a Groom of the Bedchamber to Kings George IV and William IV between March and November 1830.He also founded the Art Union of London and the Royal Botanic Society, as well as serving as vice-president of the Society of Arts and president of the Surrey Archaeological Society.Displaying his old masters collection to the public at his London house on Duchess Street, a mansion at 116 Piccadilly and at Deepdene House in Surrey.