Referring Court: Naczelny Sąd Administracyjny
Parties to the national proceedings: Jakub Cupriak-Trojan, Mateusz Trojan v Wojewoda Mazowiecki, other parties to the proceedings: Prokurator Prokuratury Okręgowej w Warszawie, Prokurator Regionalny w Warszawie
Chamber: Grand Chamber
President: R. Lenaerts
Advocate General: J. Richard de la Tour
Article 20 and Article 21(1) TFEU, read in the light of Article 7 and Article 21(1) of the Charter of Fundamental Rights of the European Union, must be interpreted as precluding legislation of a Member State which, on the ground that the law of that Member State does not allow marriage between persons of the same sex, does not permit the recognition of a marriage between two same-sex nationals of that Member State concluded lawfully in the exercise of their freedom to move and reside within another Member State, in which they have created or strengthened a family life, or the transcription for that purpose of the marriage certificate in the civil register of the first Member State, where that transcription is the only means provided for by that Member State for such recognition