Additionally, he helped create the department of the Bouches-du-Rhône and served as a member of the Legislative Assembly from 1791 to 1792.

His father, Charles Espariat, was a silversmith and later a lawyer in the Parlement of Aix-en-Provence.

Meanwhile, together with Antoine Balthazar Joachim, baron d'André (1759 -1825) and an abbey from Quinson, he helped establish the department of the Bouches-du-Rhône.

He served as a member of the Legislative Assembly from September 1791 to 1792, when he condemned the revolutionary crimes in Avignon.

[5] During the French Directory of 1795 to 1799, he served as an administrator of the department of the Bouches-du-Rhône he had helped create.