His father was the portrait painter, Marc Nattier [fr] and his mother was the miniaturist, Marie Courtois.
He became involved in the sexual scandals surrounding Etienne-Benjamin Deschauffours, who was convicted for operating a pederastic network and executed.
Rather than suffer the fate of Deschauffour (whose corpse was publicly burned in the Place de Grève), he committed suicide by cutting his throat with an oyster knife.
[citation needed] His professional belongings at the Acadėmie were returned to his family.
Media related to Jean-Baptiste Nattier at Wikimedia Commons