Educated JUniv. de San Francisco Xavier, Sucre, and faculty of law and social sciences, Rio de Janeiro.
Director, El Diario, La Paz. Correspondent, El Sol, Madrid: 1st secretary, Bolivian legation, Argentina, 1917. Brazil. 1919-1920, Spain.
1921; professor, international law, University de San Andrés, La Paz, 1921. Acting chargé d’affaires in Spain 1922-1926. National deputy, 1927.
Minister plenipotentiary to Peru, 1928-1929, Ecuador, 1930, Brazil, 1936-1939. Special ambassador to Peru, 1931. Delegate plenipotentiary, Disarmament Conference, 1932.
Delegate extraordinary, League of Nations, 1932. Delegate, International Labor Conference, Geneva, 1932. Delegate, Peace Conference, Buenos Aires, 1936.
Minister of foreign affairs, 1939-1941. Delegate, Conference of Foreign Ministers, Panama. 1940; ambassador to Chile, 1942-1943.
In exile, since 1944. Officer, Al Mérito (Ecuador), Cóndor de los Andes (Bolivia), Cruzeiro do Sul (Brazil).
Member commission for codification of international law. Member Society Bolivariana, La Paz. Member Academy, de la Lengua, Spain.
Married Elena Pérou. Children: Alberto and Carmen.