Louis-Alexandre Berthier, Prince of Neuchâtel and Valangin, Prince of 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.

The Republic and Canton of Neuchâtel is a mostly French-speaking canton in western Switzerland. In 2007, its population was 169,782, of whom 39,654 were foreigners. The capital is Neuchâtel.