Hampden was a diplomatist who held numerous positions in the government. Though originally a supporter of Sir Robert Walpole, from the accession of George III he was a close friend and follower of George Grenville. Acc. to the DNB he also wrote some Latin poetry, which was edited by his son John and published well after his death (at least acc. to the ESTC. May want to check Foxon). He also collected drawings and prints.