Diane Le Grand De Belleroche

Diane Le Grand de Belleroche has been practising as a lawyer from the Paris Bar since 2004 and as a solicitor of England and Wales since 2008.

She holds degrees from the Universities of Paris I, Paris II and Oxford as well as a PhD on private international law of trusts from the University of Paris I.

Diane Le Grand de Belleroche assists and represents individuals on international private client issues which are linked to France because of the residence / domicile of the persons involved or because of the location of some assets in France.

Her activity focuses particularly on international successions, from the stage of estate planning (organisation of future successions and of the relevant documentation to be put in place, in France and abroad) until the period which follows the beginning of the succession, including litigation matters linked to international successions.

This dual practice involving legal advice and legal representation before the courts enables her to bring to her clients a particular expertise and to provide better advice, beforehand, on contentious issues which could arise in their matters.

Diane Le Grand de Belleroche is based in Paris but her practice has always been between France and England and she goes regularly to London for work. Her main working language is English, followed by French. She can also assist in matters requiring a good command of the Spanish language.

Diane Le Grand de Belleroche also speaks at conferences, in France and abroad, and she publishes articles on international private client issues.​

She is also a member of the following societies, in France and abroad, which enables her, together with her daily practice and her travels abroad, to be in regular contact with the members of her international network : Franco-British Lawyers Society (member of the main committee of the French branch), STEP (The Society of Trust and Estate Practitioners : full member (TEP) of STEP France), AIJA (International Association of Young Lawyers), Private Client Section of the Law Society of England and Wales, American Bar Association (ABA, Section of International Law), Société de Législation Comparée (SLC, Paris), Friends of ERA (Academy of European Law, Germany).

Duncan Fairgrieve

Duncan Fairgrieve is a dual-qualified French and English lawyer, practicising on both sides of the Channel as a French Lawyer (Avocat à la Cour) and English Barrister. He practises both from 49 Boulevard de Courcelles in Paris and from the Chambers of Philip Havers QC, 1 Crown Office Row, in London.


As a French lawyer for over 15 years, Duncan Fairgrieve has a significant commercial and civil practice, with particular expertise in general commercial litigation, commercial contracts, mass torts and product liability litigation (defence and claimant work). Much of his work has a European or international law element, and he is often called upon for his experience as one of a small number of dual qualified lawyers with hands-on litigation experience in both common law and civil law jurisdictions. Over the years, he has also developed a particular expertise in providing expert evidence on foreign law, spanning French, English and Comparative Law issues.


Educated at Kings College London, Oxford and the Sorbonne, Duncan Fairgrieve has also a career as a legal academic, holding twin academic posts at the prestigious French University, L’Université de Paris Dauphine PSL, and as a Senior Fellow in Comparative Law at the British Institute of International and Comparative Law in London. He has authored or edited over 15 books, and numerous journal articles, and his work has been cited by the courts, including judges of the Court of Appeal and House of Lords (now Supreme Court) in the United Kingdom as well as before the French Conseil d'Etat.

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