Louis Mathieu Langles, a French orientalist, born near St. Didier, Aug. 23, 1763, died Jan. 28, 1824. He studied Arabic and Persian under Sylvestre de Sacy, and in 1787 published a French translation from the Persian of Tamerlane's "Political and Military Institutes," supposed to have been written by Tamerlane in the Mongol language. He was intrusted with the publication of the Mantchoo-French lexicon by Father Amiot, which he accomplished with accuracy and success. He induced the French republican government to establish the special school of oriental languages, which is still in existence. He was its first administrator, and professor of the Persian, Malay, and Mantchoo, but taught only the first of these languages. The geographical society of Paris was founded principally through his exertions. He published a great number of works relating to oriental literature, history, and geography, and by his enthusiasm and liberality contributed perhaps more than any other man of his time to the extension of oriental studies.

But his learning was confused and inexact, and his works are of little authority.