Louis-Alexandre Berthier

Louis-Alexandre Berthier, prince de Neuchâtel et Valangin, prince de Wagram was a French military commander who served during the French Revolutionary Wars and the Napoleonic Wars. He was twice Minister of War of France and was made a Marshal of the Empire in 1804. Berthier served as chief of staff to Napoleon Bonaparte from his first Italian campaign in 1796 until his first abdication in 1814. The operational efficiency of the Grande Armée owed much to his considerable administrative and organizational skills.