Judgment of the Court (First Chamber) of 12 October 2023.#BA v Finanzamt X.#Request for a preliminary ruling from the Finanzgericht Köln.#Reference for a preliminary ruling – Taxation – Free movement of capital – Articles 63 to 65 TFEU – Inheritance tax – Movement of capital between Member States and third countries – Immovable property located in a third country – More favourable tax treatment for immovable property located in a Member State or in a State which is party to the Agreement on the European Economic Area – Restriction – Justification – Housing policy – Effectiveness of fiscal supervision.#Case C-670/21.