Count Joseph Lagrange was a French soldier who rose through the ranks and gained promotion to the rank of general officer during the French Revolutionary Wars, subsequently pursuing a successful career during the Napoleonic Wars and winning promotion to the top military rank of General of Division. His name is inscribed on the west side of the arc de triomphe de l'Étoile. He later became a politician in Gers department – in its capital of Auch there is a portrait of him in the town museum and the gendarmerie barracks was named after him in January 2002.

The Battle of Heliopolis was an engagement that pitted the French Armée d'Orient under General Kléber against an Ottoman army, supported by British forces, at Heliopolis on 20 March 1800.