Maria Fogdestam-Agius


Maria is a Swedish lawyer. She holds a Master of Laws in Public International Law and Procedural Law and a Doctor of Laws in Public International Law, both from the University of Uppsala. Her expertise covers a wide array of public international law topics, including the law of treaties, the law on State responsibility, WTO law, international investment law, the law of the sea, international environmental law and EU law.

Maria advises and represents States and private entities on a wide range of contentious and non-contentious public international law and international dispute resolution issues. Recent highlights of her practice include acting for an African State in an ICSID dispute relating to the oil industry, acting for a private investor in an ICSID annulment proceeding, advising a private investor on investment claims in a post-conflict setting, advising private investors on options for enforcing and collecting on international arbitral awards, advising a State in the Far East on issues relating to maritime boundary and territorial sovereignty claims, advising a State on matters pertaining to reservations and interpretative declarations under the United Nations Convention on the Law of the Sea, advising several States on issues relating to State immunity, advising a State in the Americas on issues relating to diplomatic immunity, advising another State on issues relating to the inviolability of diplomatic premises, advising a State on human rights issues in disputed territory and advising another State on issues relating to the transboundary use of force.

Maria has published extensively in the field of public international law. Prior to joining Volterra Fietta, Maria worked as a post-doctoral researcher and teaching assistant of public international law at Uppsala University. She also tutored students in international litigation advocacy. Prior to that, she worked as a judicial clerk and junior judge in a Swedish district court. She has also interned at the International Criminal Court in The Hague.

Direct dial: +44 (0)207 380 3533



LLD, Uppsala University, Sweden

LLM, Uppsala University, Sweden


English, Swedish and French