For a company long associated with discretion, the Castel Group governance crisis has entered unusually public territory. A dispute that had already moved into courtrooms and boardrooms is now being fought through competing family statements, each offering a sharply different account of where support lies within the dynasty behind one of France’s most important wine businesses.
At the centre of the argument is not simply a disagreement between relatives. The conflict concerns the way the wider Castel organisation is governed, the authority of its current leadership and the structures established to hold assets for the benefit of the founding family.
What makes the latest episode significant is the change in tone. Until recently, the family itself had largely remained outside the public communications battle. That restraint has now broken down.
Castel Group Governance Crisis Moves Into the Open
A statement released at the end of August claimed that four of the five branches of the Castel family had distanced themselves from Romy Castel, daughter of founder Pierre Castel, while expressing support for stability within the group and for its current management.
The document presented the dispute as one in which a relatively small part of the family had driven much of the recent legal and media activity. According to those speaking for the four branches, each branch holds an equal 20% beneficial interest in the Singapore-based fund involved in the dispute.
That account was quickly challenged.
Representatives of Romy Castel and other family members opposed to the present governance arrangements disputed the suggestion that four branches stand behind the current leadership. A subsequent joint statement from Romy Castel, Alain Castel and Philippe Castel rejected the earlier communication and argued that support for it came, at most, from part of two family branches.
The result is an unusually stark situation: even the question of who speaks for the family is now contested.
For observers of French wine, the quarrel matters because Castel is far more than a private family holding. Through Castel Vins, it occupies a major position in the French wine sector, while the broader group also has extensive activities in beverages and food production in Africa. According to figures cited for 2025, Castel Vins handled around 2.7 million hectolitres of wine and generated approximately €1.1 billion in turnover.
The Dispute Behind the Castel Family Rift
The current confrontation has been building throughout 2026.
A central figure is Gregory Clerc, the Swiss lawyer and tax specialist serving as chief executive of the group. His supporters present the existing structure as consistent with Pierre Castel’s intention to place family assets within a trust-like framework administered by third parties for the benefit of family members.
His opponents see the situation differently. Romy Castel and Alain Castel, among others, have questioned the concentration of authority within the current management structure and challenged Clerc’s position in entities connected with the group’s investments.
One important strand of the dispute concerns Investment Beverage Business Management (IBBM), the Singapore-based investment-management company associated with Castel interests. In February 2026, family members voted to remove Clerc from administrative mandates connected with IBBM.
The consequences of that decision have since become part of proceedings before the High Court of Singapore.
Other legal actions have also been initiated. Complaints have been filed in Geneva concerning allegations of disloyal management and money laundering, and in Luxembourg concerning alleged misuse of corporate assets. These remain allegations within ongoing legal disputes and should not be treated as established findings.
That distinction is particularly important as the public communications surrounding the case become increasingly adversarial.
Who Actually Represents the Castel Family?
The latest phase of the Castel Group governance crisis revolves around a deceptively simple question: where does the majority of the family stand?
The first statement described Romy Castel as representing only one of five family branches and said the other four wished to reaffirm their commitment to the group’s stability. Those behind the communication identified the remaining branches as Cousinet, Béatrice Castel, Castel Bordeaux and Palu.
Romy Castel’s side rejects that interpretation.
Her lawyer, Thierry Marembert, has argued that the beneficiaries of the family structures should not automatically be treated as decision-makers simply because they receive economic benefits from them. His position is that the structure created by Pierre Castel deliberately separated beneficial ownership from operational control.
The joint response issued by Romy, Alain and Philippe Castel went further, questioning the authority behind the earlier statement and disputing the idea that it reflected a four-branch consensus.
There is therefore no agreed version of the family arithmetic.
And that is more than a public-relations curiosity. In a privately controlled group built around family ownership, differing interpretations of representation, voting rights and beneficial interests can become central to determining who has legitimate influence over strategic decisions.
From Corporate Dispute to Communications Battle
The Castel family has historically maintained a low public profile, which makes the recent exchange particularly striking.
The dispute is now unfolding on several fronts at once: corporate governance, court proceedings and public communication. Each side is attempting not only to advance its legal position but also to establish its own narrative of legitimacy.
One camp stresses continuity, stability and the preservation of structures associated with Pierre Castel. The other argues that those structures are being interpreted or exercised in a way that gives excessive authority to the current leadership.
Neither version can be treated as settled while the relevant proceedings continue.
For the wine trade, this means that dramatic statements about control of the group should be read carefully. Claims about family majorities, mandates and authority are themselves part of the dispute rather than neutral descriptions of an agreed situation.
Why the Castel Group Governance Crisis Matters to French Wine
Family disagreements are hardly unusual in the history of French wine. Estates have been divided through inheritance, companies reshaped by succession and celebrated domaines transformed by disputes between generations.
Castel operates on an entirely different scale.
Its significance within French wine means that questions concerning governance inevitably attract attention beyond the family itself. Yet there is currently little basis for assuming that the dispute will translate directly into changes for Castel Vins’ day-to-day commercial activity.
The importance of the story lies instead in what it reveals about the difficult transition from founder-led authority to institutional governance.
Large family companies often depend on structures designed to preserve both continuity and collective ownership across generations. Those arrangements can function quietly for years. When interpretations of the founder’s intentions begin to diverge, however, the very mechanisms designed to ensure stability may themselves become the subject of disagreement.
That appears to be the deeper issue now confronting Castel.
An Unusually Public Chapter for Castel
The immediate future of the dispute will be shaped less by press releases than by corporate procedure and the courts examining the various claims.
For now, no single public statement resolves the central questions surrounding control, representation or legitimacy. What is clear is that the family consensus once projected around the Castel name can no longer be assumed.
The Castel Group governance crisis has consequently moved beyond an internal struggle over boardroom authority. It has become a contest over how Pierre Castel’s legacy should be interpreted—and over who has the right to shape the company built around it.
For a group accustomed to conducting its affairs away from public view, that may be the most remarkable change of all.