Judgment of the Court (Grand Chamber) of 21 January 2020.#Proceedings brought by Banco de Santander SA.#Reference for a preliminary ruling — Article 267 TFEU — Definition of ‘court or tribunal of a Member State’ — Criteria — Independence of the national body concerned — Irremovability of the members — Inadmissibility of the request for a preliminary ruling.#Case C-274/14.