[Pierre Adolphe]. French historian, born at Rouen on the 17th of January 1809. He was educated at the École Normale Supérieure, and became a fellow (agrégé) in 1830. His early studies were devoted to his native town. His Histoire de Rouen sous la domination anglaise au XVe siècle (1840) and Histoire de Rouen pendant lépoque communale, 11501382 (Rouen, 18431844), are meritorious productions for a time when the archives were neither inventoried nor classified, and contain useful documents previously unpublished. His theses for the degree of doctor, De ladministration de Louis XIV. daprès les Mémoires inédits dOlivier dOrmesson and De Maria Stuarta et Henrico III. (1849), led him to the study of general history. The former was expanded afterwards under the title Histoire de ladministration monarchique en France depuis lavènement de Philippe-Auguste jusquà la mort de Louis XIV. (1855), and in 1855 he also published his Dictionnaire historique des institutions, murs et coutumes de la France, of which many editions have appeared. These works may still be consulted for the 17th century, the period upon which Chéruel concentrated all his scientific activity. He edited successively the Journal dOlivier Lefèvre dOrmesson (18601862), interesting for the history of the parlement of Paris during the minority of Louis XIV.; Lettres du cardinal Mazarin pendant son ministère (6 vols., 18701891), continued by the vicomte G. dAvenel; and Mémoires du duc de Saint-Simon, published for the first time according to the original MSS. (2 editions, 18561858 and 18781881). To Saint-Simon also he devoted two critical studies, which are acute but not definitive: Saint-Simon considéré comme historien de Louis XIV. (1865) and Notice sur la vie et sur les mémoires du duc de Saint-Simon (1876). The latter may be considered as an introduction to the famous Mémoires. Among his later writings may be mentioned the Histoire de la France pendant la minorité de Louis XIV. (4 vols., 1880) and Histoire de la France sous le ministère de Mazarin (3 vols., 18821883). These two works are valuable for abundance of facts, precision of details, and clear and intelligent arrangement, but are characterized by a slightly frigid style. In their compilation Chéruel used a fair number of unpublished documents. To the student of the second half of the 17th century in France the works of Chéruel are a mine of information. He died in Paris on the 1st of May 1891.