Biography

Prior to joining the EUI, Lucia Leontiev was a post-doctoral fellow at the Berlin Potsdam Research Group ‘International Rule of Law-Rise or Decline?’, Germany. Her research focuses on the law of statehood, jurisdiction, human rights, the interaction between national and international legal orders, as well as between public and private international law; topics on which she has also published extensively. Currently, she is interested in the role of geopolitics in a changing international legal order.
Lucia received her PhD in International Law from the University of Maastricht and Sant’Anna School of Advanced Studies of Pisa (double doctoral degree) with a dissertation that addresses the jurisdiction of territorial non-state entities in international law. She is an alumna of the Hague Academy of International Law and of the International Law Seminar organized by the UNOG in connection with the annual session of the International Law Commission (ILC).
Lucia worked for the Ministry of Justice of Moldova, HRC Geneva and ECtHR, and has held visiting teaching positions at several universities, including the Charles de Gaulle University-Lille 3 and at the OSCE Academy in Bishkek

Research projects, clusters and working groups

• International Thinking and Planetary Futures

Mentor

• Arnulf, Becker Lorca

Mentor

• Sergio, Puig De La Parra

Recent research output

• LEONTIEV, Lucia (2025), On the rise of universal criminal justice, Other