The son of an intendant of the généralité of Paris, Bertier de Sauvigny succeeded his father in that office in 1776 and had a cadastral survey of the généralité drawn up in order to assess the taille parish by parish. In 1789 he was responsible for provisioning the troops concentrated around Paris, which required unpopular requisitions and gave rise to the accusation, for which no evidence was produced, that he was withholding grain from the capital. He was seized at Compiègne on 22 July 1789 and killed in front of the Hôtel de Ville, hanged from a lamp-post and immediately beheaded. He was the son-in-law of Joseph Foullon, killed the same day.