The National Union was the political party of the dictatorship of Portuguese Prime Minister António de Oliveira Salazar who ruled Portugal from 1932 until a stroke debilitated him in 1968, and of Salazar's successor Marcelo Caetano. It was the only legally recognized party and thus held all of the seats in the Portuguese parliament. Antonio Salazar on July 22, 1946 issue of Time Magazine Professor António de Oliveira Salazar (April 28, 1889—July 27, 1970) was the Prime Minister of Portugal from 1932 to 1968. ... Marcelo Caetano Marcelo José das Neves Alves Caetano also spelled Marcello Caetano (pron. ...