[2][3] The National Union's membership primarily came from aristocratic and pro-monarchist Catholics in Turin, Milan, and Naples, along with members of the Black Nobility.
[5] Its manifesto credited fascism with the goal of establishing "a lasting social Christian and Italian order".
[6] According to the pro-Fascist Il Momento of Turin, the party was notorious for its "hostility towards the works and towards trade union organizations".
[7] The National Union, and the similar Centro Nazionale, supported the Fascist list in the March 1929 elections, only to virtually disappear from the political map after the conclusion of the Lateran treaties.
[8] The Centro Nazionale dissolved in the summer of 1930, leaving the National Union as the sole remaining "Clerico-Fascist" political party.