George III (1738-1820), king of the United Kingdom of Great Britain and Ireland, and king of Hanover. Letter referring to the appointment of Mr. Eden as Ambassador to Madrid and to the behavior of the King of Prussia. Dated 15 Aug 1787, 20 min past 7 AM, Windsor. Manuscript, ink on paper. 1 piece, folio leaf 23 x 19 cm (writing on 2 pages). With photocopy of seller’s catalog entry no. 532.