MAITZ DE GOIMPY, Francois Louis Edme Gabriel, Count du (mah-eets-deh-gwam-pc), French naval officer, born in the Castle of Goimpy, near Saint Leger, 8 February, 1729; died in Billancourt, Picardy, in 1792. He became midshipman in the French navy in 1746, and lieutenant in 1752, was commissioned a commander in 1772, and served during the whole of the war of American independence. He led the 1st division of the fleet under Admiral Count de Guichen, which defeated Lord Rodney off Dominique three times--17 April, 15 .May, and 19 May, 1780--and was severely wounded m the first battle, which he gained for the French by a timely movement. He commanded a division of the fleet that under Count de Grasse blockaded the Chesapeake bay, and defeated the English on 5 September, 1781. He fought also under De Grasse in the battles off Dominique on 9 and 12 April, 1782, and in 1783 became a member of the Cincinnati and a knight of Saint Louis. In the following year he was made commodore, but retired in 1785. He published "Compte rendu a Sa Majeste Tres Fidele de Portugal des observations astronomiques et geographiques faites par l'expedition francaise sur les cotes de Portugal et du Bresil" (2 vols., Lisbon, 1755); "Remarques sur quelques points d'astronomie observes in Bresil" (2 vols., Paris, 1760); "Mirage extraordinaire observe avant le jour, 16 Juillet, 1763, dans les parages des Cayes, ile de Saint Domingue" (1761); "M6moires sur les forces centripedes" (1771); and several technical works on the navy and naval constructions.