Can an adult who has left a religious community request erasure of personal data from a baptismal register? The European debate gained a new development on 1 October 2026, when Advocate General Laila Medina delivered her Opinion in Case C-12/25, Bisdom Gent. The question concerns the retention and use of personal data, individual self-determination and church autonomy. It does not concern cancellation of a sacrament, nor does it independently establish automatic erasure across all churches.

The Advocate General's Opinion is not a judgment

According to the Court of Justice's official press release, the case began when a Belgian national baptised as a child requested removal of identifying references from physical and digital records. The Diocese of Ghent recorded his departure and struck through his details but left them legible. A complaint, an erasure order by the Belgian data protection authority and a court challenge followed.

The Opinion of 1 October, identified as ECLI:EU:C:2026:803, proposes a legal solution. It does not bind the Court and is not its final judgment. As verified on 10 October 2026, the development discussed here is that Opinion. A claim that Europe ordered every church to erase baptisms would misrepresent its content.

Why even a handwritten register may fall under the GDPR

The General Data Protection Regulation does not apply only to electronic databases. It can cover non-automated processing where data form, or are intended to form, part of a filing system. Article 4(6) describes a structured collection accessible according to specific criteria. How a record is organised matters more than whether it was written in ink.

The Advocate General considers the register in this case to have that structured form. Storing, retrieving and using a baptised person's details are processing activities. Church autonomy does not create a general exemption from the Regulation. A real archive still needs assessment of its organisation, access and purposes; every historical sheet of paper should not automatically be treated as an active register.

A lawful basis and sensitive data are separate questions

A baptismal register can reveal religious beliefs and therefore contain special categories of data under Article 9. Identifying an Article 6 lawful basis is not enough. An appropriate exception to Article 9's processing prohibition must also apply, with its own limits and safeguards.

The full Opinion in Bisdom Gent examines legitimate interests under Article 6(1)(f) and Article 9(2)(d) for certain processing by non-profit religious bodies. The latter provision concerns, subject to conditions, members, former members or persons in regular contact, and requires appropriate safeguards. Lack of express consent does not automatically make processing unlawful; legitimate interests do not permit unrestricted retention either.

An objection triggers a specific balancing of rights

Where processing relies on legitimate interests, a person may object on grounds relating to their particular situation. The Greek data protection authority's explanation of the right to object describes Article 21: the controller must stop processing unless it demonstrates overriding compelling legitimate grounds or grounds relating to legal claims.

The Opinion acknowledges that correct administration of sacraments may be a legitimate church interest. Invoking it in the abstract is insufficient. Assessment must consider why specific information is necessary, the applicant's privacy and religious freedom, the body's autonomy and the consequences of refusal. Emotional distress or a wish to dissociate from the community must be examined in the actual circumstances, not treated as an automatic rule for every request.

When an objection connects to the right to erasure

Article 17(1)(c) connects erasure to an objection where no overriding legitimate grounds for processing exist. The sequence matters: what data are kept, for what purpose, on which basis, and whether that purpose still requires identifying the person. Leaving a community does not alone answer all those questions.

Erasure is not absolute, and retention is not lifelong merely because the record is ecclesiastical. The lawful exceptions in Article 17(3) must also be considered. This particular case does not justify a general conclusion that every parish in every country must use the same solution. The national court must assess the facts within the EU framework while respecting the competing fundamental rights.

A historical archive is not an automatic exception

Archiving in the public interest and historical research have a specific place under the GDPR, but conditions apply. Article 17(3)(d) and Article 89 link possible retention to necessity, safeguards and data minimisation. Simply calling a register “historical” does not demonstrate those requirements.

The Advocate General calls for a genuine public interest and examination of the legal duty to maintain records and the form of access by public authorities or the public. Historical research is not synonymous with every internal use. These rules do not authorise unrestricted publication of names: even a legitimate archival purpose requires access controls and protection against unnecessary exposure. Each purpose needs a separate assessment of its basis and safeguards.

A legible strike-through is not data erasure

If the necessary assessment establishes an erasure obligation, the Opinion regards striking through details that remain readable as insufficient, even when accompanied by a departure annotation. The person should no longer be identifiable or easily identifiable from the retained data. The technical method must achieve that objective.

Historical continuity may be protected by appropriately concealing identifying details while retaining information that a baptism occurred at a place and time. Destroying pages or changing other entries is not necessarily required. Processing personal data remains distinct from the theological meaning of the act. That distinction prevents both exaggerated promises to applicants and unjustified blanket refusals.

How to make a request and when a response is due

A useful request identifies the person and, as far as necessary, the entry; asks about purposes, legal bases, recipients and retention periods; and explains the particular grounds for objection. An erasure request can be reasoned by identifying which data should cease to identify the applicant. There is no need to send unnecessary family records or other sensitive documents.

Under Article 12(3), a response must be provided without undue delay and within one month at the latest. An extension of up to two further months is possible because of complexity or the number of requests, with notice and reasons within the first month. The official guidance on information and transparency explains the procedure. A refusal must give reasons and information about complaining to the competent authority and seeking judicial protection. The outcome requires examination of the individual case.

Nomika Epilekta Editorial Team. Prepared with AI assistance and verification of the cited official sources on 10 October 2026. This article provides general legal information and is not individual advice for a particular case.