THEVENARD, Antoine Jean Marie (tay-veh-nar), Count, French naval officer, born in Saint Nalo, 7 December, 1733; died in Paris, 9 February, 1815. He entered the service of the East India company as a cabin-boy in 1747, assisted in three combats with the English, and rose rapidly in rank. In 1754 he was sent with a sloop-of-war to Newfoundland, and destroyed all the establishments and fisheries along the northern coast of that colony. After the conclusion of peace, he became a naval engineer. He was a commodore in the East India fleet in 1767, but in 1769 joined the royal navy, was made captain of a frigate in 1770, and promoted first captain and knight of Saint Louis in 1773. When France sent aid to the United States in 1778, he was given command of a squadron, and carried troops and supplies to the Antilles and to this country. He made successful cruises along the coast of New England, and for his services was promoted brigadier-general of the naval forces in 1782, and chef d'eseadre in 1784. Assuming command of the station of South America in 1785, he was made vice-admiral in 1792, and he was successively marl-time prefect at Brest, Toulon, and Rochefort in 1792-'3, and again at Toulon in 1801. He was created a senator and a count in 1810, and made a peer of France, 4 June, 1814. He was a member of several learned societies of Europe and America, of the Royal academy of marine in 1773, and of the Paris academy of sciences after 1785. He published "Memoires relatifs a la marine" (4 vols., Paris, 1800), which is still a standard work.