Du Châtelet, Gabrielle Emilie Le Tonnelier de Breteuil, marquise, 1706-1749
One of eighteenth-century France's most significant women intellectuals, Mme. du Châtelet was also notable for her facility with languages, her athletic ability, her success at gambling, and her deep intellectual and emotional relationship with Voltaire, who left Paris with her when threatened with prosecution for his Lettres Philosophiques (1734) and with whom Mme. du Châtelet openly carried on an affair of several years duration.