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The 36th EGPL Annual Reunion

The European Public Law Organization (EPLO) successfully hosted the 2025 Reunion of the European Group of Public Law (EGPL) on 12–13 September 2025, bringing together distinguished judges, academics, and practitioners from across Europe and beyond. The conference addressed the overarching theme “International Law, European Union Law, Constitutional Law”, fostering a dynamic dialogue on the evolving relationship between legal orders in a rapidly changing world.

The Reunion began with the First Session, presided over by Prof. Ronny Abraham, Judge at the International Court of Justice. This session examined International Law Standards in National Constitutional Law, with notable interventions:

• Prof. David Feldman (University of Cambridge, UK) – International Law as Part of a National Constitution

• Prof. Anja Seibert-Fohr (European Court of Human Rights) – International Human Rights as a Parameter of Constitutionality

• Prof. Jorge Vargas (National Autonomous University of Mexico) – International Law Limits to National Constitution-making Power

• Prof. Harris Tsiliotis (University of Peloponnese, Greece) – Status of International Treaties in Constitutional Law: A Comparative Perspective

Following workshops, the Second Session focused on International Law and European Union Law, under the presidency of Dr. Miriam Meßling (Federal Constitutional Court, Germany). Presentations included:

• Prof. Edoardo Chiti (Scuola Superiore di Sant’Anna, Pisa, Italy) – The Interplay between International Law and EU Administrative Law: Dynamics, Tensions and Effects

• Prof. Marco D’Alberti (Judge, Italian Constitutional Court) – International, EU, and Constitutional Law Interacting for the Protection of the Environment

• Prof. Lina Papadopoulou (Aristotle University of Thessaloniki, Greece) – The Extent and the Mode that International Law Binds EU Constitutional Law​

The Third Session, presided over by Prof. Marcello Clarich (La Sapienza University, Rome), explored The Domestic Enforcement of International Law, with contributions from:

• Prof. Flora Goudappel (University of Curaçao, Kingdom of the Netherlands) – Implementation of Treaty Obligations in the National Legal Order

• Prof. Jakub Handrlica (Charles University, Czech Republic) – Diplomatic (non)recognition and Domestic Administrative Law

• Prof. Mehmet Semih Gemalmaz (Istanbul University, Türkiye) – Defining International Obligations from Soft Law

• Prof. Federico Fabbrini (Dublin City University, Ireland) – The EU Constitution in Time of War: Legal Responses to Russia’s Aggression against Ukraine

The General Conclusions were presented in the Fourth Session by Prof. Jean-Bernard Auby (Sciences Po, France), providing a synthesis of the debates.

The highlight of the Reunion was the ceremony celebrating the 90th anniversaries of Prof. Sabino Cassese and Prof. Gérard Timsit, presided over by Prof. Prokopios Pavlopoulos, former President of the Hellenic Republic. The celebration featured tributes from eminent figures, including:

• Prof. Marco D’Alberti, Judge at the Italian Constitutional Court

• Prof. Norbert Foulquier, Université Paris 1 – Panthéon-Sorbonne, France

• Prof. Spyridon Flogaitis, University of Athens, Greece

The Reunion concluded with a Report on the activities of the EPLO, the awarding of the Thesis Prize 2024, and the Report of the Thesis Prize Committee 2025.

The EGPL 2025 Reunion once again affirmed its role as a leading forum for dialogue on public law at the intersection of international, European, and constitutional legal orders. The event combined rigorous academic debate with the celebration of scholarly achievements, continuing the tradition of excellence fostered by the European Public Law Organization.

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