During the French First Empire, Deschamps was Joséphine de Beauharnais's "secrétaire des commandements" and remained at her service after the divorce from Napoléon.
Deschamps presented la Revanche forcée (1792),[1] Piron chez ses amis (1792), Poinsinet ou que les gens d’esprit sont bêtes (1793), Dufresny ou le Mariage impromptu (1796) at Théâtre du Vaudeville[2] as well as some other plays in collaboration with Barré, Radet, Desfontaines, Desprez, the opéra comique Claudine (1794),[3] oratorios, etc.
[4] Deschamps gave the Théâtre des Arts Le Pavillon du Calife, ou Almanzor et Zobéïde,[5] opera in two acts and in free verse, in collaboration with Jean-Baptiste-Denis Despré and Étienne Morel de Chédeville, music by Nicolas Dalayrac, 12 April 1804 (22 germinal an XII ).
in-8°) among others, and gave a French version in verse of Il bardo della Selva Nera by Vincenzo Monti, (1807, in-8°).
Deschamps wrote the libretto for Ossian, ou Les bardes, opera by Jean-François Le Sueur (1804).