French army officer and author.

Page du roi (1760). Rose to the rank of cavalry major in the French service. Published numerous historical, philosophical, and literary works. Member of the academies of Caen and Rouen.

Son of Gaspard-François and Élisabeth (de Féra) de Toustain-Richebourg. Married Angélique-Émilie-Périne du Bot de la Grignonnaye (1769); seven children.