He was born in Santo ngel in the Misiones Province. In 1804, the family moved to Spain, where he served in the Spanish army and fought in the Napoleonic Wars. However, in 1811 he quit the Spanish royal services, returned together with Jos de San Mart n to Buenos Aires and susequently fought for the independence of Argentina. In 1813, he was nominated president of the Constituting General Assembly, and the following year, he commanded the independentist forces that forced the Spanish royalist army under Gaspar Vigodet to capitulate at Montevideo. On January 9, 1815, he was elected Supreme Director, but had to resign already on April 15 the same year, since his attempts to install himself as a dictator were strongly opposed by the armies of general Ignacio lvarez Thomas. As a consequence, he had to leave to country until 1824. In the war with Brazil in 1827 he again served as a general for Argentina and won the battle of Ituzaing (February 20). In 1829, he became "War minister", and from 1838 on, he was minister plenipotentiary (a rank of ambassador) to the United States. He died in New York City.
CarlosMarIade Alvear[kAr´lOs mArE´A dA AlvAAr´] Pronunciation Key, 17891852, Argentine general and statesman.
After distinguished service with the Spanish army in Europe, he returned to Argentina with his friend San MartIn and became a leader in the domestic revolution of 1812 and a member of the constituent assembly of 1813.
In 1815 Alvear was named supreme director of the United Provinces of the RIo de la Plata, but was deposed when he attempted to become a dictator.