He was promoted general of division on 3 February 1793 and took command of the places of Arras, Peronne, Bapaume, Doullens and Saint-Pol on 14 May 1793.

He was charged by the directors of the Pas-de-Calais department to take over the command of the Army in the event of a British landing along the Montreuil coasts.

[3] Impaired and in poor health, he was discharged on 5 December 1797, and then appointed commander of the 8th Demi-brigade of veterans on 18 October 1800.

[3] He was elected to the Pas de Calais General council from 1800 to 1803 and died in Neuville, near Montreuil in 1803 aged 63.

The eldest, Jean-Blaise-Alexandre Duval, born in Montreuil on 24 June 1797, initially intended to the Prytanée National Militaire, became a second lieutenant in the 19th line regiment (fr) in 1814 and his younger brother chose to enter the Imperial Cavalry School of Saint-Germain.