The Austrian invasion of the Kingdom of the Two Sicilies in March 1821 led to an end the eight-months long constitutional revolution started with the Nola uprising in July 1820 and forced the main leaders of the revolutionary movement to exile themselves in order to avoid the Bourbon repression. The destination chosen by the vast majority of them was Spain not only for practical reasons (possibility to reach the country, similar language) but also in order to continue the fight against absolutism in a context si- milar to the Neapolitan one from a cultural and political point of view, continuing the struggle against a transnational enemy: the Holy Alliance. Arrived in the Iberian Peninsula, the Neapolitan political community keeps discussing the Cadiz constitution (dividing itself over it), confronting with their Spanish comrades and bring in the host country the model of southern Italian secret societies. These divisions, moreover, find their origin in the contacts that Neapolitan conspira tors had with Spanish liberals before and during the revolution: within the "Bourbon- space" not only diplomacy and States operate in a common political space but also secret societies, liberals and conspirators. Different projects of an armed invasion of the Two Sicilies are made before the Spanish constitutional experiment is ended by the French army sent by the Holy Alliance.
Keywords: Exile;; secret societies;; liberalism;; conspirators;; carbonari;; Spain