[Sir William Knighton, Keeper of the Privy Purse, physician, secretary and confidante to George IV.] Autograph Note Signed ('W Knighton') [as Secretary to the Sovereign] to 'Sir Henry', arranging a meeting with the king.

1p, 12mo. In fair condition, lightly aged. Reads: 'Dear Sir Henry | The King desires to see You at Carlton House to morrow Morning at eleven oclock - punctually. | Yours affect | W Knighton'. Knighton was instrumental in clearing the king's enormous debts in three years from 1822. Such was his influence that letters from the King to Knighton were addressed to 'M[y] D[ear] F[riend]'. From the distinguished autograph collection of the psychiatrist Richard Alfred Hunter (1923-1981), whose collection of 7000 works relating to psychiatry is now in Cambridge University Library. Hunter and his mother Ida Macalpine had a particular interest in the illness of King George III, and their book 'George III and the Mad Business' (1969) suggested the diagnosis of porphyria popularised by Alan Bennett in his play 'The Madness of George III'.