(? - 1786)
Jacques-François Vaillant is one of the most important Parisian clockmakers of the late 18th century. After becoming a master on September 7, 1750 he opened a workshop in the Quai des Augustins, at the corner of the rue de Hurepoix, and quickly gained renown among the connoisseurs of fine horology. During the early years of the 19th century, his clocks are mentioned in the probate inventories of Charles-Marie-Philippe Huchet de la Bédoyère, Charles Jean-François Malon de Bercy, Charles-Eugène de Montesquiou-Fezensac and Jérôme-Joseph-Marie-Honoré Grimaldi, Prince de Monaco.