Case C-560/20, Landeshauptmann von Wien (Family reunification with a minor refugee): Judgment of the Court (Grand Chamber) of 30 January 2024 (request for a preliminary ruling from the Verwaltungsgericht Wien — Austria) — CR, GF, TY v Landeshauptmann von Wien (Reference for a preliminary ruling — Area of freedom, security and justice — Immigration policy — Right to family reunification — Directive 2003/86/EC — Article 10(3)(a) — Family reunification of an unaccompanied minor refugee with his or her first-degree relatives in the direct ascending line — Article 2(f) — Concept of ‘unaccompanied minor’ — Minor sponsor at the time of submission of the application but who attained majority during the family reunification procedure — Relevant date for assessing minor status — Period for submitting an application for family reunification — Adult sister of the sponsor requiring the permanent assistance of her parents on account of a serious illness — Effectiveness of the right to family reunification of an unaccompanied minor refugee — Article 7(1) — Article 12(1), first and third subparagraphs — Possibility of making family reunification subject to additional conditions)