At the Battle of Salamanca in July 1812, Taupin led a brigade in Antoine Francois Brenier de Montmorand's 6th Division. The 2,706-strong brigade included two battalions of the 17th Light and three battalions of the 65th Line Infantry Regiments. Brenier's division arrived on the field as Antoine Louis Popon de Maucune's division was being ridden down by a British heavy cavalry brigade under John Le Marchant. Attacked by Le Marchant's horsemen, Brenier's other brigade, consisting of the 22nd Line, shot down one-fourth of the troopers of the leading squadron. However, the British dragoons rode into it and routed it. Le Marchant was killed in the struggle, shot through the spine. In the battle, Taupin's two regiments sustained lighter losses than 21 officers lost by the 22nd Line. The 17th Light lost nine officers while the 65th lost only three. In the Burgos Campaign during October 1812, Taupin commanded the 3rd Division of the Army of Portugal which was formerly led by Claude François Ferey. The division was made up of two battalions each of the 31st Light, 26th Line and 70th Line plus three battalions of the 47th Line Infantry Regiment.