Franklin's neighbor at Passy.

Proprietor of les eaux minérales de Passy. The waters, under royal patronage, were known for their therapeutic and medicinal qualities and were frequented by Rousseau and Franklin.

Remained Franklin's close friend and prolific correspondent after Franklin returned to Philadelphia.

Received as doctor at the Faculty of Medicine at Reims in 1769.

Became the first Mayor of Passy (1790).

Guillotined in 1794.

Born in Dreux, Normandy. Married to Elisabeth Belamy, whose dowry was the eaux minérales de Passy.