French historian, born at Blois; came early under the influence of Saint-Simon, and during 1814-17 lived with him as secretary, assimilating his socialistic ideas and ventilating them in various compositions; Comte became his master next, and history his chief study, an outlet for his views on which he found in the Censeur Européen, and the Courrier Francais, to which he contributed his "Letters on French History" (1820); five years later appeared his masterpiece, the "Conquest of England," to be followed by "Letters on History" and "Dix Ans d'Études" (1835), in which same year he was appointed librarian at the Palais Royal; in 1853 appeared his "Tiers État," the last of his works; has been called the "father of romantic history," and was above all a historical artist, giving life and color to his pictures of bygone ages, but not infrequently at the cost of historic accuracy (1795-1856).