LAGRAVIERE, Jurien Pierre Roch de (lah'-grav'-yair'), French naval officer; born in Gannat, 5 November, 1772; died in Paris, 14 January, 1849. He entered the navy in 1785, and in 1796 commanded a brig, with which he cruised for eighteen months on the coast of Brazil and in the West Indies, destroying slave-ships. In 1798, as captain of a frigate, he commanded the station of Paraguay. In 1802 he was attached to the expedition to Santo Domingo, and captured the fortress of Leogane, 4 March, 1803. During the following years he was employed to escort French merchant vessels from America to Brest. In 1816 he was promoted rear-admiral, and in 1819 bombarded Algiers. On his return he received orders to visit all the harbors of Brazil, West Indies, and South America, to ascertain the justice of the claims of the French residents in those countries, and especially to study the political and commercial situation of South America, and in eighteen months he accomplished his mission successfully. In 1824 he was instructed to force the government of Hayti to settle the claims of the French residents who had been despoiled during the troubles of 1790-'84, and twenty-four hours after his arrival off Port au Prince a treaty was signed with the French minister. On 1 March, 1831, he was promoted vice-admiral, and in the following year was created a peer of France. His publications include "Rapport a sa Majeste Tres Chretienne sur la situation politique et commerciale du Perou et du Chili" (2 vols., Paris, 1821);. "Rapport sur la situation et les reclamations des rdsidents Francais dans l'Amerique du Sud" (2 vols., 1822)" "La question Haitienne" l'indemnite, et les veritables ressources du pays" (1824); and "Encore la question Haitienne: Haiti peut-il payer l'indemnite ?" (2 vols., 1835).