Jacqnes Angnste De Lat. Thuanus (Thou), a French historian, born in Paris, Oct. 8, 1553, died May 7, 1617. He was the son of a first president of the parliament of Paris, studied law at home and in Italy, and was early engaged in diplomatic and judicial employments. In 1588 he was one of the deputies to the states general at Blois. He aided in effecting a reconciliation between Henry III. and Henry of Navarre, and went to Germany and Italy to procure men and money for them. Henry IV. appointed him grand master of the royal library, and in 1594 president d mortier of the parliament of Paris. He was one of the framers of the edict of Nantes, and supported the rights of the Gallican church by preventing the adoption of several decrees of the council of Trent. On the death of Henry IV. he was appointed one of the directors of finance. His Historia sui Temporis (completed from his materials by Pere Dupuy and Nicolas Ricrault in a 7th ed., 1620) embraces the period from 1543 to 1607, in 138 books. The only complete edition of his works is that of 8. Buckley and T. Carte (7 vols, fol., London, 1733), including besides the above his autobiography, letters, and various essays, with an appendix by Rigault continuing the history to the death of Henry IV. A French translation appeared in 1734, in 16 vols. 4to, and a new edition of his autobiography in French, by Masson, in 1838. De Thou also left some Latin poems: Hieracosophion, sive de Re Ae-cipitraria Libri III. (4to, 1584); Poemata Sacra (12mo, 1599); and Posteritati, etc. (12mo, 1678). - See'"Life of Thuanus, with some Account of his Writings," by the Rev. John Col-linson (London, 1807), and Discours sur la vie et les ouvrages de J. A. de Thou, by Philarete Chasles (Paris, 1824). - His son, Francois Auguste, who succeeded him in the royal library, was a friend of Cinq-Mars, and was executed with him, Sept, 12, 1642.