Bruno Bueno Assalin is an Integrated Researcher at Lisbon Public Law and a PhD student in Law – specialising in Legal and Political Sciences – at the University of Lisbon School of Law. He holds a degree in Law from the Presbyterian Mackenzie University, Faculty of Law (São Paulo/Brazil) and a Master's degree in Law – Specialization in Legal and Political Sciences/Mention in Constitutional Law – from the Faculty of Law of the University of Coimbra. Additionally, he has completed postgraduate studies in Fundamental Rights at IBCCRIM/Instituto Ius Gentium Conimbrigae (IGC) – Center for Human Rights at the Faculty of Law of the University of Coimbra, and in Human Rights at the Instituto Ius Gentium Conimbrigae (IGC) – Center for Human Rights at the Faculty of Law of the University of Coimbra. His research interests lie in the intersectional research of Constitutional Law and the Philosophy of Law and the State, particularly regarding the issues of the foundation and maintenance of the legitimacy/authority of constitutional systems, their assumptions, and boundaries in the face of the historical-cultural realities in which they are embedded. He also focuses on their necessary relationship with the constitutional construction processes carried out by Constituted Powers, adopting primarily the analytical perspectives of Hartian-Razian positivism and the structured empiricism of Scandinavian legal realism.