Bellinger v Bellinger (House of Lords)

In brief

The House of Lords held that a post-operative trans woman could not be treated as female for the purposes of the Matrimonial Causes Act 1973 s.11(c), rendering her marriage void. The court declined to use HRA s.3 to reinterpret 'male' and 'female' to include trans persons, holding this would go beyond the interpretive function: the question of recognition criteria was for Parliament. The House instead issued a declaration of incompatibility under HRA s.4, finding s.11(c) incompatible with Articles 8 and 12 ECHR. The decision directly precipitated the Gender Recognition Act 2004. At common law, sex was treated as a biological attribute determined at birth (per Corbett v Corbett [1971]), and it was Parliament — not the courts — that changed this via GRA 2004. Doctrinal significance: Bellinger confirms that absent GRA 2004, biological sex determined at birth governs English law; it anchors the thread confirmed in FWS-UKSC-2025.

Key provisions

• para-1 — Framing question — legislative function for sex-recognition criteria: Lord Nicholls (opening): the question of what criteria should govern legal recognition of acquired gender is a matter for Parliament, not the courts using HRA s.3.
• para-5 — Biological sex at common law (EHRC SPA-2026 fn 12 anchor): Lord Nicholls confirms that at common law, sex was treated as a biological attribute determined at birth (per Corbett v Corbett [1971]). EHRC SPA-2026 cites this paragraph at fn 12 for the operative common-law principle.
• declaration — HRA s.4 declaration of incompatibility — MCA 1973 s.11(c): The House issued a declaration that MCA 1973 s.11(c) was incompatible with Articles 8 and 12 ECHR insofar as it failed to recognise the acquired gender of post-operative trans persons for marriage purposes.

When relevant

Cite when: (a) common-law biological-sex principle needs anchoring (pre-GRA 2004 position); (b) HRA s.3 vs s.4 boundary is in issue; (c) any case in the doctrinal chain BELLINGER → GRA 2004 → GOODWIN → FWS → SPA-2026; (d) the GRA's legislative history is being explained; (e) trans-recognition law generally — Bellinger is the foundational HL authority on which Parliament's GRA 2004 response built.