Case C-173/22 P: Judgment of the Court (First Chamber) of 30 November 2023 — MG v European Investment Bank (EIB) (Appeal — Civil service — Staff of the European Investment Bank (EIB) — EIB Staff Rules — Remuneration — Family allowances — Payment to the sole parent with full custody of the child — Charter of Fundamental Rights of the European Union — Article 41(2) — Right to be heard — Plea of illegality in respect of the Staff Rules — Principle of equal treatment — Principle of proportionality — Action for annulment and for damages)