In Koilova and Babulkova v. Bulgaria, (ECHR, Sept 5, 2023) (full text of decision in French) (Court's English Summary of decision), the European Court of Human Rights ruled that Bulgaria violated Article 8 of the European Convention on Human Rights (Respect for private and family life) by failing to have a procedure for recognizing or registering a same-sex marriage entered in another country. According to the English language summary of the decision, the Court said in part:
... [I]n the absence of official recognition, same-sex couples were nothing more than de facto unions for the purposes of national law, even where a marriage had been validly contracted abroad. The partners were unable to regulate fundamental aspects of life as a couple such as those concerning property, family matters and inheritance, except as private individuals entering into contracts under the ordinary law, where possible, rather than as an officially recognised couple. They were not able to rely on the existence of their relationship in dealings with the judicial or administrative authorities or with third parties. Even assuming that national law had allowed the applicants to apply to the domestic courts for protection of their basic needs as a couple, the necessity of taking such a step would have constituted in itself a hindrance to respect for their private and family life.
[Thanks to Law & Religion UK for the lead.]