1823
Historical maker
Named in 1 book.
What the books printed
Grove's Dictionary of music and musicians, Grove, George, 1820-1900, editor. New York: The Macmillan company, 1927. Page 519, scan 581.
Johann Gottlob Pfretzschner (1753–1823), member of a violin-maker's family of several generations, was the first Markneukirchen maker to abandon the Stainer model in favour of that of Stradivari.
Same name
Whether any of these is the same person, the books do not say.