A bit confusing. According to Leonore:
he was in 1er batalion of Aube 1791-1801
Capitaine in 20ème léger 1802-21st of Septembre 1809
Chef de bataillon "à la suite" (without affectation) in 7e léger from 21 September 1809 to 2 October 1810
Chef de bataillon in 25e léger from 2 October 1810
But in the Legion of Honour Oath form of 1806, he signed as "Capitaine au 7e léger" ?
Was the 7th Léger present at the battle ?