Who was President of Argentina when César Augusto Guzzetti became the first foreign minister of the military government?
César Augusto Guzzetti:  After the 1976 coup d'état that overthrew the government of Isabel Perón, Guzzetti became the first foreign minister of the military government presided by Lieutenant General Jorge Rafael Videla. Isabel Martínez de Perón: María Estela Martínez Cartas de Perón (born 4 February 1931), better known as Isabel Martínez de Perón (] ) or Isabel Perón, served as President of Argentina from 1974 to 1976.
Isabel Martínez de Perón