[Haydn, Joseph. (1732–1809)] Nikolaus I, Prince Esterházy. (1714–1790) Autograph LetterAutograph letter from the Hungarian prince, a member of the famous Esterhzy family, whose building of palaces, extravagant clothing, and taste for opera and other grand musical productions led to his being given the title "the Magnificent." He is remembered as the principal employer of Joseph Haydn. 1 page, in French, dated 26. 7. 1767. The Schloss Esterhzy palace in Eisenstadt, Austria was one of the residences of the Esterhzy family. For much of his