Product Catalog › François-Christophe Kellermann (1735-1820) François-Christophe Kellermann (1735-1820) $0.00 Maréchal of Napoléon I, Duke of Valmy; 2 letters signed, to General Claude-Ignace-François Michaud, 1798-1799 Add To Cart Added! Maréchal of Napoléon I, Duke of Valmy; 2 letters signed, to General Claude-Ignace-François Michaud, 1798-1799