Case C-618/24, Isergartler: Judgment of the Court (Fourth Chamber) of 26 March 2026 (request for a preliminary ruling from the Oberster Gerichtshof – Austria) – XK, TR, VQ v SM (Reference for a preliminary ruling – Judicial cooperation in civil matters – Regulation (EU) No 650/2012 – Articles 1, 3 and 4 – Scope – Concept of succession – Statutory legacy conferred for services provided by a carer for the deceased during the latter’s lifetime – General jurisdiction of a court of a Member State to rule on the succession as a whole)