Edouard Adolphe Caslmir Joseph Mortier, duke of Treviso, a French soldier, born at Cateau-Cambresis, Feb. 13, died in Paris, July 28, 1835. He served as captain under Du-mouriez in 1791, was made adjutant general for his bravery at Hondschoote in 1793, and became brigadier after the battle of Altenkir-chen, June 4, 1796. In this capacity he served in 1799 on the Danube, and in Switzerland under Massena. After the 18th Brumaire Bonaparte made him commander of the loth and 16th military districts, sent him to Hanover, which he conquered in 1803, put him at the head of the artillery of the consular guard, and in 1804 made him marshal of the empire. He led a division in the campaign against Austria in 1805; subdued Hesse-Cassel and Hamburg in 1806; worsted the Swedes in several encounters, and occupied Pomerania with the exception of Stralsund. In 1807 he assisted in the campaign against Prussia, fought at Fried-land, and received the title of duke of Treviso. As commander of the 5th corps of the army in Spain, he participated in the siege of Saragossa, won a victory at Ocana, Nov. 19, 1809, laid siege to Cadiz, and defeated the Spaniards on the Gevora in 1811. In the expedition against Russia in 1812, he commanded the junior imperial guard.

He figured in nearly all the battles fought in 1813; and on March 30, 1814, with Marmont, he took part in the defence of Paris. Having adhered to the Bourbons, he was named peer of France during the first restoration, but joined Napoleon on his return from Elba. On the second restoration, his refusal to sit among the judges of Marshal Ney lost him his peerage. In 1816 he was elected to the chamber of deputies, and in 1819 was restored to his seat in the upper chamber, where he voted with the liberal party. Under Louis Philippe he was ambassador to Russia in 1831, and prime minister in 1834, with the portfolio of the war department. He was killed by Fieschi's " infernal machine," while on horseback by the side of Louis Philippe.