Global governance, its law, and institutions, are at the heart of the debates in every crisis the world goes through. Considered as a possible solution to avoid future armed conflicts, global governance has been – and still is – a subject that has been taken up by jurists, philosophers, and political scientists. Their works, often future-oriented, constantly refer (almost paradoxically sometimes) to the Kantian works on cosmopolitanism, to the point of having erected him as the true founding father of the cosmopolitical doctrine. This positioning of Kant as the father of all cosmopolitical doctrine could be put into perspective and reconsidered by taking into account previous legal and philosophical works (from Greek philosophy to Spanish scholastic). Repositioning Kant’s thought within this juridical-philosophical typology is primarily of interest in order to critically re-examine the concept of supra-nationality developed by more recent jurists (starting with Hans Kelsen).