This paper aims to analyze the historical evolution of the Privete International Law, particularly the ideal of jurisdictional cooperation between the Middle Ages and Modernity. The paper analyzes the theory of Pasquale Stanislao Mancini, with his notion of the international community as a set of nations, and not as a set of states, as usual. The doctrine of Mancini was based on three pillars: nationality, freedom and sovereignty. In addition, Mancini left the territoriality principle to adopt the universality of private relations, basing the universalist conception of jurisdictional cooperation.
International Relations; Jurisdictional Cooperation; Pasquale Stanislao Mancini