RIONS, Francois Charles Hector d'Albert, Count de (re-ong), French naval officer, born in Avignon, 10 February, 1728; died in Paris, 3 October, 1802. He entered the navy in 1743, served in Canada during the war of 1756-'63, and was placed in charge of the station of Santo Domingo in 1769, where he made a survey of the coast of the Leeward islands, tie served under D'Estaing at Newport, in the campaign of the Antilles in 1778-'81, and under Vaudreuil in the engagement with Admiral Arbuthnot in Chesapeake bay. He continued to serve under De Grasse in the following campaign, assisted in the battles off St. Christopher and Dominica in April, 1782, and joined Vaudreuil at Boston. He emigrated in 1792, serving in Germany in the army of Conde, returned to France in 1800, arm was pensioned in 1802. His works include "Resume des operations de l'armde navale du Comte de Grasse pendant les annees 1781-1782" (Toulon, 1786).