Prison des Madelonnettes, where he died after a few weeks at the age of ninety-three. Family His eldest son, Louis Charles de Machault d'Arnouville (1737–1820), was bishop of Amiens from 1774 until the Revolution. He was one of the most uncompromising conservatives at the Estates-General of 1789, where he voted consistently against every reform. He emigrated in 1791, which provoked the arrest of the members of his family still in France in 1793, when his father and his brothers Charles and Armand were arrested as parents and relatives of an émigré. Upon his return to France in 1802, he resigned his bishopric in order not to be an obstacle to Concordat of 1801, and he retired to the ancestral château of Arnouville, where he died in 1820. References Further reading Antoine, Michel, Louis XV, Librairie Arthème Fayard, Paris, 1989, 18th-century French politicians 1701 births 1794 deaths French Ministers of Finance Members of the French Academy of Sciences