Claridad, Buenos Aires, 2003. Rodríguez, Gregorio F., Historia de Alvear, Cía. Sudamericana de Billetes de Banco, 2 tomos, Buenos Aires, 1909 Rodríguez, Gregorio F., Contribución Histórica y Documental, Buenos Aires, 3 tomos, Talleres “Casa Jacobo Peuser”, 1921. Biography. Alvear's letter to San Martín while in exile External links 1789 births 1852 deaths People from Rio Grande do Sul Argentine people of Spanish descent Argentine Freemasons Argentine generals Supreme Directors of the United Provinces of the Río de la Plata People of the Cisplatine War Argentine diplomats Spanish generals Ambassadors of Argentina to the United States People of the Argentine War of Independence Burials at La Recoleta Cemetery Spanish military personnel of the Napoleonic Wars Patrician families of Buenos Aires