Born in Paris, the son of a parliamentary lawyer, Ameil entered the army as a simple infantryman on July 14, 1789.
On July 12, 1809, he was named colonel of the 24th Chasseurs de Cheval [Light Cavalry] Regiment,[1] and on November 21, 1812, he was made a Brigade General.
After the abdication of Napoleon in 1814, Ameil accepted the restored Bourbon regime and was made a Knight of the Order of Saint Louis.
He was sent to Auxerre, but was intercepted by royalist forces and sent as a prisoner to Paris on the same day that Napoleon victoriously entered the Tuileries Palace.
However, the sentence was not carried out, and on July 25, 1821, he was pardoned by a royal decree and his titles, rights, honors, and rank were restored.