He enlisted in the Army in 1789 and on 1 August 1791, he was named captain in the 9th Battalion of Volunteers of Paris and served in the infantry in the early French Revolutionary Wars.
During the campaign of 1806, he served as a General de brigade in the corps of Marshal Bernadotte and took part in the chase of the Prussian army to Lübeck after their defeat at Jena.
He was put on the court martial appointed to judge Marshal Ney on a charge of treason for joining Napoléon but after he and his colleagues declared themselves incompetent he was demoted to command of the 8th Military Division in Marseilles.
[1][4] This expedition consisted in a land intervention of the French Army in the Peloponnese at the time of the Greek War of Independence, with the aim of liberating the region from the Turkish-Egyptian occupation forces commanded by Ibrahim Pasha.
After the soldiers took control of the principal strongholds held by the Turkish troops (Navarino, Modon, Coron and Patras), General Maison was created a Marshal of France by Charles X on 22 February 1829.
[5] In 1830, Maison supported the July Revolution and served in November 1830 as Minister of Foreign Affairs for a couple of weeks, before being sent to Vienna as ambassador.