early life and career jean-baptiste bourcet, also known as jean bourcet, was a french military officer born in usseaux, france in 1713. he died in corte, france in 1771. bourcet played a key role in the realization of maps of the alps and the establishment of the carte de la provence orientale. he was also involved in the campaign of conquest of corsica and served as a brigadier des armées du roi, maréchal de camp and armées du roi. cartography and military career bourcet's brother, pierre bourcet, was also a french military officer and cartographer. together, they worked on the cartography o…