Judge Pangalangan (1958) came to the ICC from the University of the Philippines where he has taught constitutional law and public international law as a Professor of Law and former Law Dean. He has taught inter alia at the Harvard Law School and The Hague Academy of International Law, and has lectured on international humanitarian law for the International Committee of the Red Cross. He is a contributing author to the Commentary on the Rome Statue of the International Criminal Court. He has delivered the Keynote at the Salzburg Seminar on International Criminal Law.
He has been a Member of the Philippine Bar since 1984. He has argued before the Philippine Supreme Court and has been designated as amicus curiae in leading constitutional law and international law cases. He was a Philippine Delegate in the drafting of the Rome Statute in 1998 and co-chaired the national campaign for ratification by the Philippines and other Asia-Pacific states.
He studied at Harvard where he received his LL.M. (winning the Laylin Prize in international law) and S.J.D (winning the Sumner Prize for best dissertation on international peace). He holds the Diplôme of The Hague Academy of International Law.
He sits in the governing councils of the Asian Society of International Law and, until 2014, the International Association of Constitutional Law. He sits in the boards of various academic journals.