https://www.britannica.com › biography › Jose-de-San-Martin
José de San Martín, (born February 25, 1778, Yapeyú, viceroyalty of Río de la Plata [now in Argentina]—died August 17, 1850, Boulogne-sur-Mer, France), Argentine soldier, statesman, and national hero who helped lead the revolutions against Spanish rule in Argentina (1812), Chile (1818), and Peru (1821). San Martín’s father, Juan de San Martín, a Spanish professional …