Our Team

Horatia Muir Watt

Horatia Muir Watt is a Professor of Private International Law and Comparative Law at Sciences Po à Paris, where she co-directs the ‘Global Governance Studies’ program with Jean d’Aspremont. She is a member of the Institute of International law and of the Institut Universitaire de France, and director of the Revue critique de Droit international privé. In private international law, her main publications include a treatise Droit international privé published by Presses Universitaires de France, with Dominique Bureau (4th edition, 2017); Aspects économiques de droit international privé, RCADI 2004 t. ; Discours sur les méthodes du droit international privé, RCADI 2017 and Pocket Bookseries 2018.   She directs the PILAGG (private international lawas global governance) research group at Sciences Po.

Hans Van Loon

Hans Van Loon was Secretary General of the Hague Conference on Private International Law from 1996 until 2013, and a member of its Permanent Bureau (scientific secretariat) since 1978. He contributed to a dozen Hague Conventions on private international law. He also acted as Executive Secretary of the Netherlands Standing Government Committee for the Codification of Private International Law, and as deputy judge in the Arrondissementsrechtbank (District Court) at The Hague. He is a member of the Institut de Droit International, of the Groupe européen de droit international privé (GEDIP), and a honorary member of the Asociación americana de derecho internacional privado (ASADIP). He has lectured and published widely, and advised governments and international organisations on issues of private and public international law.


Christelle Chalas specialises in Private International Law. Her main field of research is family law and international jurisdiction. She wrote her PhD thesis on Forum non conveniens. She regularly publishes in themain French review in PIL, the “Revue critique de droit international privé”. Recently she has been working on Prenuptial Agreements(comparative and international perspective) and on the European Regulations in the fields of divorce, matrimonial regimes and parental responsibility. She is the Maître de conférences (habilité à diriger des recherches) at l’Université Paris 8 / Lecturer (qualified to supervise academic research) at the Université of Paris 8. She also teaches at Sciences Po Law School.

Hélène van Lith

Hélène van Lith recently joined University Paris IX Dauphine PSL as an Associate Professor of its School of Law. Before that she worked as an Associate Researcher at Sciences Po Law School. Her academic research work includes her doctoral thesis :”International Jurisdiction and Commercial Litigation – Uniform Rules for Contract Disputes”, which was awarded the Swiss AISDC Prize, as well as her research for the Dutch Ministry of Justice on Collective Settlements and Private International Law. In her work at the ICC International Court of Arbitration, Hélène van Lith manages the Commission on Arbitration and ADR and is responsible for several ICC Task Forces.

Marta Pertegas

Marta Pertegás is a Professor of Law working in the area of private international law, international commercial law,international family law and international civil procedure. From 2008 to 2017,she served as First Secretary at the Permanent Bureau of The Hague Conference on Private International Law in The Hague. Since April 2018, she is also affiliated with Maastricht University as a Full Professor. Professor Pertegás has developed research and outreach projects in cooperation with other international organisations such as the United Nations Commission on International Trade Law (UNCITRAL), in Vienna, the International Institute for the Unification of Private Law (UNIDROIT) in Rome and the World Intellectual Property Organisation (WIPO) in Geneva.

Johan Meeusen

Johan Meeusen (°1969; LL.M. University of California at Berkeley, 1993; Ph.D. University of Antwerp, 1997) is full professor at the University of Antwerp, where he teaches European Union Law and Conflict of Laws (Private International Law). Professor Meeusen is honorary vice-rector of the University of Antwerp. Professor Meeusen served as vice-rector of the University of Antwerp (2008-2016) and as the dean of its Faculty of Law (2006-2008).

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