Hermann Fictuld

Hermann Fictuld (c. 14 January 1700 – c. 1777) was a pseudonym used by an early Freemason, whose identity has not been definitely determined. He wrote books on alchemy and on Hermeticism.

In addition to other works on alchemy, Fictuld corresponded with theosopher Friedrich Christoph Oetinger. The Aureum Vellus was widely read and may have led to the Order's integration into the Society of Freemasons. based on a substitution cipher at the end of one of his books, p. 380 of Azoth et Ignis, Das ist, das wahre Elementarische Wasser und Feuer Oder Mercurius Philosophorum, Als das einige nothwendige der Fundamental-Uranfänge und Principiorum des Steins der Weisen, 1749. Other sources suggest that his real name may have been Johann Heinrich Schmidt von Sonnenberg (1700-1777).