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International lawyers for a new generation of families
Strategic advice in a supporting environment
Expert advices for international families

Our firm

Based on our well-established professional practice, over years, we have developed solid partnerships with foreign law firms to best respond to the needs of our clients. Based on our solid reputation, we have established fluid partnerships with major players in the field of family wealth management, whilst remaining completely independent, which guarantees the quality and seriousness of our services.

Our expertise

We advise private clients on all areas of family and matrimonial law issues both in relation to domestic and international family law and estate litigation.

We have developed specific expertise in drafting international family agreements and contracts.

Through the expertise of our team, we provide expert family law advice, with a special awareness to corporate and trust issues.

Hence, our areas of expertise cover:

Civil and common-law unions
International marriage, civil partnership and prenuptial agreements.
Assets and estates
Maintenance and wining up of matrimonial regime, property holding and wealth management (real estate, trusts, companies, foundations, assets division), succession and probate (change of matrimonial regime, international postnuptial agreements, interfamily donations), estate protection (lasting power of attorney, management agreement for joint and divided assets).
Separation and divorce
Choice of adequate international forum, concurrent proceedings and lis pendence issues, jurisdictional disputes, financial and asset settlements, children and custody, recognition and enforcement of foreign decisions, including financial recovery.
Intercountry adoption, surrogacy, recognition of parentage, recognition and enforcement of foreign decisions with the French authorities.
Conditions of parental authority (parental plans), changes of residence (relocation or wrongful removal and abduction), children’s protection (children judge), children’s property management (guardianship judge).

Our values

We firmly believe in negotiation and alternative dispute resolution
Charlotte Butruille-Cardew pioneered collaborative law in France and continues to promote ADR. Over the years, we have built solid relationships with other key players in alternative dispute resolution and we continue to provide internal and external training on interest-based, intuitive and multicultural negotiation.
When litigation is needed, we strongly and strategically defend our clients' interests
We have 20 years of experience of complex family litigation. The members of CBBC were able to build trust and partnerships with a rich network of international experts on a wide range of legal specialties, including criminal, business and tax law, as well as finance, accounting, security experts. We also collaborate with a number of trustworthy bailiffs and translators.
Our passion for law is at the heart of our practice
Frédéric Bicheron is professor of Law and members of the team are Doctors of Law or university lecturers. CBBC regularly provides training, and contributions to academic publications or legal journals and we partner with multiple graduate programs of law (Master of General Private Law Paris II- Assas, Master of International Private Law and Commerce Paris I – Panthéon - Sorbonne). Over the last 15 years, we also developed a strong educational link with the university of King’s College London.
We are proud of our international expertise
All CBBC members have worked or studied abroad and speak at least two languages. As members of numerous international organisations, we have intervened at conferences in Brazil, Kiev, Moscow, Japan, New York, Portugal, London, Scotland, Switzerland, and welcomed international trainees from Switzerland, Germany, Israel, China, Japan, Russia and Afghanistan.
We appreciate the human dimension of our work
We deeply value the long lasting partnerships we have developed with our clients. We regularly collaborate with coaches, psychologists and healthcare professionals to better understand our clients’ family issues and provide them with the best guidance possible. To contribute to the promotion of equal rights, we have organized a visit to France for Mrs Sima Samar, former Minister of Women’s Affairs in Afghanistan.

Our team

CBBC is proud of the diversity of experience of its lawyers. We all work collaboratively to ensure the most favourable and timely outcomes for our clients.
Charlotte Butruille-Cardew
Lawyer - Partner
+33 (0)1 53 35 87 58
Strategy Excellence Commitment

Charlotte Butruille-Cardew is a founding partner at law firm CBBC.

Lawyer at the Paris Bar since 2001, accredited specialist of Family Law with the CNB.

Registered Foreign Lawyer with the Law Society England and Wales since 2004.

Elected Member of the Paris Bar Council 2021-2023.

Board member of the Paris Bar School.

Collaborative law practitioner.

She practices law in French and English.




With her specific expertise in financially complex international family law cases and formidable experience of dealing with challenging matters, she advises on international asset planning and represents her clients in multi-jurisdictional litigation. She has been recognized by her clients and her peers for her talent in achieving successful settlement.




Charlotte Butruille-Cardew is a Knight of the Academic Palms.

 She is also an accredited specialist in family law.




Charlotte Butruille-Cardew is a Fellow and Governor of the International Academy of Family Lawyers.


She was consulted on family law reform projects by the European Commission and by the law societies of England and New Zealand, and on EU Family projects by the Max Planck Institute.


She is the author of numerous books including Family Law, A global Guide (Thomson Reuters), Amicable Dispute Resolution Guide (Dalloz), International prenuptial agreements and postnuptial agreements (Jordan Limited) and The law of divorce: global perspectives (Icfai University Press). She regularly publishes articles in French and English, and is a regular guest speaker in France and abroad on international family law issues and complex international negotiations.


She is the French correspondent of the International Family Law Journal.




Charlotte is an accredited practitioner of and trainer on the collaborative law process, an alternative resolution technique based on integrative negotiation, which she introduced in France in 2007. She holds Harvard certificates in interest-based negotiation and teaches negotiation techniques and collaborative law process at the Paris Bar, and intercultural negotiation techniques at the International School of alternative dispute resolution (EIMA). She co-chairs the Paris Bar's open commission on amicable resolution international family law disputes.


Charlotte Butruille-Cardew is a doctor of Law. After working as an associate lecturer, she now works closely with universities in France and England, including for 15 years as a conference organizer at King’s College University (London) on French and English perspectives on family law. She contributed to the design of academic programs of the Universities of Assas, Nanterre, and IFOMENE and is a member of numerous scientific committees or life member of honour, as past president or founding member of AFPDC, IDFP, EIMA, Etats Généraux du droit de la famille.




Doctor of Law: French and English divorce law, Paris XII - 2000 - London School of Economics -2001


LLM: Kings College London -1995


Master’s degree : Private law, Paris II Université Paris-Pantheon Assas -1994-




Prior to founding CBBC in 2009, Charlotte Butruille-Cardew worked as a corporate lawyer in London and Paris and also worked during her Phd with avocats aux Conseils (French Supreme courts).

Frédéric Bicheron
Lawyer - Partner
+33 (0)1 53 35 87 50
Experience Ingenuity Competence

Frédéric Bicheron joined CBBC at its creation.

He is a Partner of CBBC and an Associate Professor of law at UPEC-Paris XII University – School of Law.




Frédéric Bicheron intervenes for the firm on complex patrimonial cases.


His experience as a lawyer within an important law firm of avocats aux Conseils (able to intervene before the highest French Courts) has enabled him to develop an expertise on cases brought to the French Court of Cassation, but also a pragmatism and reactivity rooted in the need to respond effectively to the needs of clients, while bringing his academic expertise to the table.





After graduating with a Ph.D. from the University of Panthéon-Assas in 2003 by completing a thesis on "la dation en paiement", under the direction of the professor Michel Grimaldi, Frédéric Bicheron became a Professor of Law in private law and criminal sciences in 2007.


From 2007 to 2013, he taught private law at the University of Nantes, where he directed the Masters 1 and 2 of notarial law.


Currently, Frédéric Bicheron is a lecturer at the University of Paris XII (UPEC) where he teaches corporate law, family transmission of business, the law of matrimonial regimes and donations.





Frédéric Bicheron also participates to many conferences abroad (Japan, China, Vietnam, Cambodia, Romania, Italy, Ivory Coast, Togo, Benin, Cameroon, Senegal, Peru, Argentina, Chile, Mexico, Canada…).

Madeleine Diébolt
Of counsel Lawyer
+33 (0)153 35 87 54
Rigorous Determined Human

Madeleine Diebolt is off counsel lawyer since January 2020 and joined the firm in 2014.





Madeleine Diebolt acts in international family law cases and more particularly in cases involving complex international divorce, parental authority, wrongful removal, adoption, and recognition of foreign decisions.



She works in French and English.


She has special experience in dealing with Common law, the Middle-East and Asian countries.





CAPA - 2014


Master’s degree (2nd year) - International affairs - University Paris I Sorbonne – 2010 – Major of Promotion


Master's degree (1st year)- International Law - University Paris-I Sorbonne - 2009 


Madeleine Diebolt is a teacher in family law at the University of Paris XII UPEC.


In addition, she has led several commissions at the Paris Bar (Minors' Commission and Family Commission) as well as several training courses in partnership with Lexis Nexis focusing solely on family law.


Madeleine Diebolt regularly writes articles for the International Family Law Journal, Dalloz and Lexbase.





Before working with CBBC, Madeleine Diebolt did various internships with the United Nations in New York and Vienna. She also worked with the International Adoption Service of the Ministry of foreign affairs in Paris.


She also did a one-semester academic exchange in the United States during her law degree.

Madeleine Diebolt has attended several Young Lawyers’ annual meeting of the IAFL (International Academy of Family Lawyer): Berlin (2015), Madrid (2016), Warsaw (2017) and Milan (2019) as well as the 2018 IAFL's General Meeting in Dubaï.


Madeleine Diebolt has been a speaker at several Conferences either in France:

-        Comundi-LexisNexis conference in January 2018 on the subject of prestations compensatoires

-        Conference to the Defenseur des droits in April 2017 on the subject of "The child, at the center of legal cases".


As well in England:

-        Kings College Conference in London in 2014

-        Speaker for France at the Conference organised by English law firm Pennington Manches on the theme: "International transgender issues and Family law: a comparative view" in June 2019.


She has been a regular speaker at the Paris Bar Committee on the subject of children:


-        In February 2016 on the theme: "The international instruments when dealing with maintenance obligations and child contact",

-        In October 2017 on the theme: "Jurisdiction and applicable law for child's protection".


As well as at the Paris Bar Committee on the subject of Families, in January 2017 on the theme: "Non-EU international divorces".





Madeleine Diebolt did various internships in France and abroad. While in Bar school, she did an internship with the Paris Court of Appeal’s Prosecution service specialised in financial matters.

Pierre-Guillaume Ducluzeau
+33 (0)1 53 35 87 53
Bold Efficient Pugnacious

Pierre-Guillaume Ducluzeau joined CBBC in January 2016.




Pierre-Guillaume Ducluzeau is qualified in family law at the University of Sorbonne, he mainly works on complex patrimonial cases, such as divorces, liquidations of matrimonial regimes and successions, in both French and international law.


His experience within the CBBC Law Firm has led him to develop a specific expertise in Franco-English and Franco-Swiss cases.


He works daily in French and English and and has some knowledge of Chinese.




Certificate of international wealth management - University Clermont Ferrand / AUREP - 2020


CAPA - 2016


Master's degree (2nd year) of Family and Persons' Law - University Paris I Sorbonne - 2013.


Master's degree (1st year) of Private Law - University Paris II Assas - 2012.


Pierre-Guillaume Ducluzeau spoke at the Resolution Conference in England in April 2018 to present the regime applicable to the recognition and enforcement of English family decisions in France.


Pierre-Guillaume Ducluzeau wrote an article published in January 2020 in the AJ Famille "La course à la juridiction aura-elle lieu" and co-authored an article "the new divorce law as of January 2017", published in April 2017 in the International Family Law journal.


Pierre-Guillaume Ducluzeau is the author of "Will there be a jurisdiction race? " in the AJ Famille, Dalloz, January 2019, dedicated to new EU Regulation n°2016/1104 on registered partnerships. He cosigned an article in the April 2017 edition of the International Family Law Journal dealing with the new French divorce law as of 2017.




Pierre-Guillaume Ducluzeau has lived and studied in China as an exchange student at the LL.M in Chinese Law at Renmin University in Beijing.


He regularly participates in the Young lawyers’ annual meeting of the IAFL (International Academy of Family Lawyer): Madrid 2016 - Warsaw 2017 - Milan 2019.


He is a member of the English association of Family law, Resolution.




He has worked as an intern for several family law firms in Paris as well as an intellectual property law firm.


He has also worked for the Prudential Control Authority and for a press agency.

Charlotte Ankaoua
Academic Researcher - Jurist
+33 (0)1 53 35 87 57
Ingenious Bold Determined

Charlotte Ankaoua joined the CBBC firm as an academic researcher and lawyer in January 2020.


She is in the process of obtaining the Paris' Bar.




Charlotte Ankaoua has developed an expertise in private international law and international arbitration law.


Her PhD in private law, obtained with honourable distinction and unanimous congratulations from the jury, allowed her to deepen very specific notions of private international law.




In 2021, Charlotte wrote the article "l'assimilation de l'action paulienne à une action contractuelle selon la Cour de justice de l'Union européenne" (The assimilation of the Paulian action to a contractual action according to the Court of Justice of the European Union) in the Journal of International Law Clunet, n° 3, 2021, p. 6 


Doctorate in Private Law - L'ordre public transnational - 2019 - Under the supervision of Professor Thomas Clay - Paris-Saclay (Versailles/Saint-Quentin-en-Yvelines) – With great distinction and unanimous congratulations of the jury and a proposal to compete for a thesis prize.


Master’s degree (2nd year) - Arbitration and International Trade - University Versailles-Saint-Quentin-en-Yvelines - 2014


Master’s degree (1st year) - Business Law - University Paris I Panthéon-Sorbonne - 2013


Master’s degree (1st year) - Justice and Trial - University Paris I Panthéon-Sorbonne - 2013


Master’s degree (1st year) - Applied Economics - University of Paris I Panthéon-Sorbonne - 2013


Bachelor's degree in Law and Economics, University of Paris II Panthéon-Assas - 2011.


Charlotte Ankaoua has also been co-editor of the Journal de l'arbitrage de Versailles, published by LexisNexis, since 2018.


She is also the author of a research paper "Ebauches de réflexions sur l'ordre public transnational".





Charlotte Ankaoua is a teacher and research associate at the University Paris I Panthéon-Sorbonne (contract law, general liability of obligations, family law).


She is also a contractual doctoral student with a teaching assignment at the University of Versailles-Saint-Quentin-en-Yvelines (private international law, civil liability, general liability of obligations, introduction to law) and a temporary lecturer at the University of Evry Val d'Essonne (private international law).





Charlotte Ankaoua has taught various areas of law at the Universities of Versailles/Saint-Quentin-en-Yvelines, Evry Val d'Essonne and Paris I Panthéon-Sorbonne.

Vittoria Gnudi
+33 (01) 53 35 87 50
Committed Tenacious Responsive

Vittoria Gnudi joined CBBC in July 2021.






After an internationally oriented university career, Vittoria Gnudi specialised in French-Italian cases and European issues.


She is particularly interested in the arbitrability of family disputes, which she choses as the subject of her Master 2 thesis. 


Vittoria Gnudi works dailly in French, Italian and English.

She has also some knowledge of Spanish. 





CRFPA - 2020


Master 2 Private International Law and International Trade - University Paris 1 Panthéon-Sorbonne - 2020


Double degree in French and Italian law between the University Paris 1 Panthéon-Sorbonne and the Università degli Studi di Firenze : Bachelor's degree, Master's degree, Master 2 International Jurist and Italian diploma of Laurea magistrale in Giurisprudenza - 2014/2019


"Tesi di Laurea" (thesis) on the topic "The right to family reunification of EU citizens : The inclusion of non-traditional unions in the scope of Directive 2004/38/EC"


Vittoria Gnudi is a teacher in private international law at the University Paris 1 Panthéon-Sorbonne





As part of her dual university education, Vittoria Gnudi studied in Italy and then in France.


During her Master 2 "International Jurist", Vittoria Gnudi did a one-semester exchange in the Netherlands at the European Law School of Maastricht 2019.


She participated in the Legal Clinic on the protection of fundamental rights by the European Court of Human Rights at the Università degli Studi di Firenze, where she won along with her teammates a Moot Court judged by the former Preisdent of the European Court of Human Rights Guido Raimondi.


During her PPI ("projet pédagogique individuel"), she worked for several months in a law firm specialized in international family law, the IFL Studio Legale in Milan, Italy.




Vittoria Gnudi has completed internships in law firms in Italy and France in criminal law and in private international law.

Isis Pinto
Résolue, Consciencieuse, A l’écoute

Isis Pinto joined CBBC in January 2022.




Isis Pinto has a particular interest in Franco-British divorce cases and as well as parental authority cases, in particular international wrongful removal cases.


Isis Pinto works daily in French and English.




CAPA - 2022


Master’s degree (2nd year) of Private Law - University of Paris Saclay – 2021- Research paper on the topic “Fraud in private international family law” - 2021


Master’s degree (1rst year) – French law - Common Law: Focus on Private International Law – University of Nanterre - 2018


Bachelor’s degree: Double degree in French and Common Law at the University of Nanterre - 2014/2017




During her studies, Isis Pinto lived in many countries, including Spain, the United States, and the United Kingdom. 


As a continuation of her double university education, Isis Pinto lived in London, England, where she interned in an English law firm specialising in international family law.




Isis Pinto has completed internships in English law firms, in particular with Dawson Cornwell in private international family law. 


She also completed an internship at the Court of Appeal of Paris in the family and private international law department.

Chayma Khazzani
+33 (0)1 53 35 87 50
Persévérante, Investie, Consciencieuse

Chayma Khazzani a rejoint le cabinet en 2023.

Elle est en cours d’obtention du CAPA.




Chayma Khazzani a un intérêt particulier pour les dossiers en droit international de la famille en particulier les divorces et déplacements illicites internationaux. Elle souhaite continuer à se former dans le domaine de la médiation.

Son parcours et ses expériences lui ont permis de développer une solide connaissance du droit international et européen.

Chayma Khazzani travaille quotidiennement en français et anglais. Elle possède également des notions d’espagnol et d’arabe.




LL.M in Public International Law – Leiden University, Netherlands –  2019

Master 1 Droit International – Université Paris II Assas – 2018

Licence Droit – Université Paris II Assas – 2016




Chayma Khazzani a passé plusieurs années à l’étranger dans le cadre de sa formation.

Au cours de son Master 1, elle a effectué un échange Erasmus de six mois aux Pays-Bas. Elle a ensuite poursuivi ses études au sein de l’Université de Leiden et obtenu un LL.M en droit international public.

Elle a également vécu un an à Barcelone et un an à Bruxelles à l’occasion de stages.




Chayma Khazzani a fait de nombreux stages auprès de différentes organisations non-gouvernementales et organisations internationales aux Pays-Bas, en Espagne et en Belgique.

Elle a notamment effectué un stage de neuf mois au sein de la Commission Européenne, travaillant sur des questions de non-discrimination et d’Etat de droit.



Alexandra Arnould
Accountant - Administration
+33 (0)1 53 35 87 50
Dynamic rigorous organized





Alexandra has more than 16 years of experience in accounting firms and 2 years in start-ups.


She joined CBBC in May 2019 as an accountant and office manager.


Alexandra is in charge of treasury, invoicing, HR, accounting, tax and general administration.







Alexandra Arnould has worked in various accounting firms as a professional accountant executive. In October 2016, she joined the start up Content Square, which specializes in solutions to optimize customer experience on e-commerce sites as head of sales and senior general accountant.

Frédéric Garcia
Credit Control
+33 (0)1 53 35 87 50
Fiabilité – Inventivité – Rigueur


Frédéric travaille en cabinet d’avocats depuis une vingtaine d’années. Ayant l’expérience des grands cabinets internationaux mais aussi des cabinets nationaux de taille moyenne et des TPE, il est spécialisé en comptabilité client (facturation et recouvrement), sous l’angle du renforcement de la relation client. Il a intégré CBBC au début de l'année 2022.



Frédéric parle couramment anglais ; il a vécu et travaillé à Londres dans la banque et pour une start-up américaine.



Frederic a assuré facturation et recouvrement dans deux grands cabinets d’avocats anglo-saxons pour les départements banking, corporate, IP/IT, fiscal et droit social. Il a ensuite été responsable de la relation-client, la facturation et la trésorerie dans des cabinets spécialisés en droit pénal des affaires. 

CBBC regularly hosts trainees and young lawyers from all over the world (from Japan to Ukraine, from New Zealand to Afghanistan) to build connections with international legal professionals and contribute to the mutual exchange of knowledge and experience.

Our achievements

28 November 2023
Formation "Amiable et enjeux internationaux" organisée par la Commission ouverte MARD du Barreau de Paris

Le 13 décembre 2023, Charlotte Butruille-Cardew co-animera avec Gaëtan Escudey une formation organisée par la Commission ouverte des MARD du Barreau de Paris sur le thème "Amiable et enjeux internationaux", dans le cadre de laquelle seront notamment présentées les spécificités des litiges familiaux transfrontaliers et l'importante du recours aux modes amiables en la matière.

28 November 2023
Intervention de Charlotte Butruille-Cardew aux Assises "avocats, magistrats, greffiers et personnels de justice"

Le 11 décembre 2023, Charlotte Butruille-Cardew interviendra lors de la 3ème édition des Assises "avocats, magistrats, greffiers et personnels de justice" à la table ronde consacrée aux MARD.

Ce sera notamment l'occasion d'échanger avec les différents acteurs de la justice au sujet des nouveaux outils de l'audience de règlement amiable (ARA) et de la césure du procès civil.

28 September 2023
Intervention de Charlotte Butruille-Cardew à l'EFB le 11 octobre 2023

Le mercredi 11 octobre 2023, Charlotte Butruille-Cardew intervient à l'école de formation des barreaux de la Cour d'appel de Paris (EFB) dans le cadre du Parcours international. Son intervention porte sur "Le droit civil européen: divorce et enlèvement international d'enfants".


8 September 2023
La formation notariale et ses nouveaux défis : approche interne et internationale

Les 6 et 8 septembre 2023 s'est tenue l'Université d'été de la Chair internationale de Droit notarial - Fondation Rennes 1.

Frédéric Bicheron a participé à un atelier sur la prévention des risques de responsabilité professionnelle.

7 September 2023
Colloque annuel Association des juristes des franco britanniques

Charlotte Butruille-Cardew participe, le 6 octobre 2023, au 30ème colloque annuel de l'association des juristes franco britanniques (AJFB). La tablea ronde sera sur le thème "Repenses les modes traditionnels : le recours au jury, la collégialité, la justice négociée".


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Our information

CBBC Law Firm
21 boulevard Saint Germain - 75005 Paris

Maubert-Mutualité line 10 / Jussieu lines 7 or 10


Monday to Friday from 9 am to 7 pm
+33 (0)1 53 35 87 50 
+33 (0)1 53 35 00 73 

We value lawyers with a good team spirit who combine a thorough yet inventive approach towards legal issues.

To apply for an internship or a position with CBBC, please send your CV at

To contact us or for further information, please send an email at

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