José Antonio Primo de Rivera José Antonio Primo de Rivera José Antonio Primo de Rivera y Sáenz de Heredia, 1st Duke of Primo de Rivera, 3rd Marquess of Estella, (April 24, 1903 – November 20, 1936), often referred to as José Antonio, was a Spanish lawyer, nobleman, politician, and founder of the Falange Española ("Spanish Phalanx"), later Falange Española de las JONS. He was the eldest son of military dictator Miguel Primo de Rivera. Imprisoned before the start of the Spanish Civil War, he was accused of conspiracy and military rebellion against the Government of the Second Spanish Republic and was sentenced to death and
Francisco Largo Caballero succeeded him as head of the party and of the UGT. Moderate in his positions at the beginning of his political life, he advocated maintaining a degree of UGT cooperation with the dictatorial government of General Miguel Primo de Rivera, which permitted the union to continue functioning under his military dictatorship (that lasted from 1923 to 1930). This was the start of his political conflict with Indalecio Prieto, who opposed all collaboration with the dictatorial regime. He was Minister of Labor Relations between 1931 and 1933, in the first governments of the Second Spanish Republic, headed by Niceto Alcalá-Zamora, and