Case C-689/21, Udlændinge- og Integrationsministeriet (Loss of Danish nationality): Judgment of the Court (Grand Chamber) of 5 September 2023 (request for a preliminary ruling from the Østre Landsret — Denmark) — X v Udlændinge- og Integrationsministeriet (Reference for a preliminary ruling — Citizenship of the European Union — Article 20 TFEU — Article 7 of the Charter of Fundamental Rights of the European Union — Citizen holding the nationality of a Member State and the nationality of a third country — Loss of the nationality of the Member State by operation of law upon reaching the age of 22 on the ground of lack of a genuine link with that Member State where no application to retain nationality has been made before the date on which that age is reached — Loss of citizenship of the Union — Examination of the proportionality of the consequences of that loss from the point of view of EU law — Limitation period)