Joined Cases C-116/21 P to C-118/21 P, C-138/21 P and C-139/21 P: Judgment of the Court (Third Chamber) of 14 July 2022 — European Commission v VW, European Parliament, Council of the European Union (Appeal — Civil service — Pension — Staff Regulations of Officials of the European Union — Article 20 of Annex VIII — Grant of a survivor’s pension — Surviving spouse of a former official in receipt of a retirement pension — Marriage entered into after termination of the official’s service — Condition that the marriage must have lasted for at least five years at the date of the official’s death — Article 18 of Annex VIII — Marriage entered into before termination of the official’s service — Condition that the marriage must have lasted for at least one year only — Plea of illegality in respect of Article 20 of Annex VIII — Charter of Fundamental Rights of the European Union — Article 20 — Principle of equal treatment — Article 21(1) — Principle of non-discrimination on the ground of age — Article 52(1) — No arbitrary or manifestly inappropriate differentiation in the light of the objective pursued by the EU legislature)