Courtanvaux, François-César Le Tellier, marquis de (1718-1781)

Soldier and scientist.

Entertained Franklin during his first trip to Paris (1767). Their social relationship appears to have continued at least through 1778.

Member of the Académie des Sciences. Author of Précis d’un voyage entrepris pour la vérification de quelques instruments destinés à la détermination des longitudes sur mer (Paris, 1768).

Born in Paris.