Case C-488/21, Chief Appeals Officer and Others: Judgment of the Court (Grand Chamber) of 21 December 2023 (request for a preliminary ruling from the Court of Appeal — Ireland) — GV v Chief Appeals Officer, Social Welfare Appeals Office, Minister for Employment Affairs and Social Protection, Ireland, Attorney General (Reference for a preliminary ruling — Citizenship of the European Union — Articles 21 and 45 TFEU — Right of Union citizens to move and reside freely in the territory of the Member States — Worker having acquired the nationality of the host Member State while retaining his or her nationality of origin — Directive 2004/38/EC — Article 3 — Beneficiaries — Article 2(2)(d) — Family member — Dependent direct relatives in the ascending line of a worker who is a Union citizen — Article 7(1)(a) and (d) — Right of residence for more than three months — Retention of the status of dependant in the host Member State — Article 14(2) — Retention of the right of residence — Regulation (EU) No 492/2011 — Article 7(2) — Equal treatment — Social advantages — Social assistance benefits — Unreasonable burden on the social assistance system of the host Member State)