José Félix Uriburu

Lieutenant General José Félix Benito Uriburu y Uriburu was the President of the Provisional Government of Argentina, ousting the successor to President Hipólito Yrigoyen by means of a military coup and declaring himself president. From 6 September 1930 to 20 February 1932, he controlled both the Executive and Legislative branches of government. As "President of the Provisional Government," he acted as the de facto Head of state of Argentina.

Source: Wikipedia