Judgment of the Court (Eighth Chamber) of 27 March 2025.#R. K. v K. Ch. and Others.#Reference for a preliminary ruling – Area of freedom, security and justice – Judicial cooperation in civil matters – Jurisdiction in matters relating to maintenance obligations – Regulation (EC) No 4/2009 – Maintenance allowances set by a decision of a court of a third State – Maintenance creditors residing in that third State and holding either the nationality of that third State alone or the nationality of that third State and of a Member State – Maintenance debtor, a national of that Member State and habitually resident in that Member State – Application to modify that decision made by that maintenance debtor to a court of that Member State – Determination of the court with jurisdiction.#Case C-67/24.