Career
During the Spanish civil war he became Mayor of the city of Bilbao in 1938. Between 1947 and 1964 he served as Spanish Ambassador to Buenos Aires, Washington District of Columbia and Paris. In 1964 he resigned from his office and was asked by the King in exile to lead the monarchist opposition to general Franco, as Secretary General of his Private Council.
Between 1975 and 1976 he was the first Foreign Affairs Minister of the new King Juan Carlos I. In 1976, along with Pío Cabanillas he founded the first Partido Popular, which later became part of the University College Dublin, although he left after disagreements with Adolfo Suárez.
In 1979 he was elected to the Congress of Deputies for Madrid district for the Coalición Democrática. He wrote over 3000 newspaper articles and 12 books