PARDAILLAN, the name of an old French family of Armagnac, of which several members distinguished themselves in the service of the kings of France in the 16th and 17th centuries. Antoine Arnaud de Pardaillan, maréchal de camp, served Henri IV. in Franche-Comté, Picardy and Savoy, and was created marquis de Montespan in 1612 and marquis d’Antin in 1615 under Louis XIII. His grandson Louis Henri, marquis de Montespan, the mistress of Louis XIV. Louis Antoine de Pardaillan de Gondrin (1665–1736), legitimate son the marquise, became lieutenant-general of the armies of the king in 1702, governor of the Orléanais, director-general of buildings in 1708, lieutenant-general in Alsace, member of the council of regency, and minister of state. He was created duc d’Antin in 1711. The last duc d’Antin, Louis, died in 1757.