Ballivián, José(hōsā` bäyēvyän`), 1805–52, president of Bolivia (1841–47). An able military commander who had served in the war against Spain, Ballivián was proclaimed president after the breakup of the Peru-Bolivia confederation under Santa CruzSanta Cruz, Andrés
, 1792?–1865, president of Bolivia (1829–39). In 1820 he joined the revolutionists against Spain and, as Bolívar's chief of staff, participated in the decisive liberating battles of Junín and Ayacucho.
..... Click the link for more information. . At Ingavi (1841) he defeated President Gomarra of Peru, who had attempted to seize La Paz. Ballivián thus insured Bolivian autonomy. Promulgating (1841) a new constitution, he energetically but arbitrarily instituted public reforms. Intense opposition forced him to resign.