a celebrated French painter, draftsman, engraver and writer. He became known as the "Norman Callot". He taught both his daughter Espérance Langlois and his son Polyclès Langlois and they often assisted him with drawings and engravings. In 1793 he began to study art at the École de Mars in Paris under the painter Jacques-Louis David. In 1794 he was conscripted into the army, but managed to obtain his freedom with the help of friends and received his final discharge from Napoleon's wife Joséphine de Beauharnais.
