Judgment of the Court (Seventh Chamber) of 11 April 2024.#XXXX v Sozialministeriumservice.#Request for a preliminary ruling from the Bundesverwaltungsgericht.#Reference for a preliminary ruling – Social security – Migrant workers – Family benefits – Regulation (EC) No 883/2004 – Article 3 – Sickness benefits – Scope – Care leave allowance – National of a Member State residing and working in another Member State and caring for a family member in the first Member State – Ancillary nature in respect of the care allowance – Article 4 – Equality of treatment.#Case C-116/23.