CELEX:62019CJ0437: Judgment of the Court (Third Chamber) of 25 November 2021.#État du Grand-duché de Luxembourg v L.#Request for a preliminary ruling from the Cour administrative.#Reference for a preliminary ruling – Administrative cooperation in the field of taxation – Directive 2011/16/EU – Article 1(1), Article 5 and Article 20(2) – Request for information – Decision ordering that information be provided – Refusal to comply with the order – Penalty – ‘Foreseeable relevance’ of the requested information – Absence of identification of the taxpayers concerned individually and by name – Concept of ‘identity of the person under examination or investigation’ – Statement of reasons of the request for information – Scope – Charter of Fundamental Rights of the European Union – Article 47 – Right to an effective remedy against the decision ordering that information be provided – Article 52(1) – Limitation – Respect for the essence of the right.#Case C-437/19.