Colonel in the Dutch army. Retired to Geneva (1775). Published Cahiers militaires portatifs, contenant une nouvelle idée sur le génie et plusieurs autres pièces intéressantes … (1778), which was reprinted in England.
Forwarded to Franklin a proposal which advertised his forthcoming Cahiers as a military textbook. Offered to come to Paris at the commissioners’ expense so they could examine and possibly purchase the manuscript (1777).
Born in Grancy, Switzerland. Alternate form of the name: Tissot Grenus.