Politician. He became vice-president of the Federal Republican Center of Valencia in 1869. Juan Domingo Ocón Aizpiolea went into exile in Marseille after the federal uprising of 1869. In 1871, he was elected deputy for the Federal Democratic Republican Party in Segorbe, his hometown. He participated in the assembly of the Democratic Federal Republican Party in 1872 in Madrid, before the Spanish general elections in April of that year. He was also re-elected deputy in the general elections that same year. He became secretary of the Council of Ministers during the First Spanish Republic,.