Müller, Johann Heinrich Friedrich, famous Viennese castle actor, before with the wandering troops of Schuch and Schönemann, chronicler and patron of the Burgtheater, playwright, author of a valuable autobiography, which was republished in 1958 (1738-1815). Letter from M. U. "Müller". Double sheet with address and varnish seal. Folio. Vienna 12.XII.1763. To the mayor and council of the city of Enns. According to the addressee's letter, he had "the fish [?] to Hrn. Baron von Managetta, who would like to be thanked here". Also about a "memorial". - With small old sticker of a French. Autographensammlung. - The content of the letter does not fit so much with the person of the theater man Müller, who had become a member of the Burgtheater this year, that doubts about the correctness of the attribution can arise. However, there is the accompanying excerpt from an old French antiquarian catalogue, in which the letter is clearly attributed to the "célèbre acteur et auteur dramatique allesand".