Case C-20/17: Judgment of the Court (Second Chamber) of 21 June 2018 (request for a preliminary ruling from the Kammergericht Berlin — Germany) — proceedings brought by Vincent Pierre Oberle (Request for a preliminary ruling — Judicial cooperation in civil matters — Regulation (EU) No 650/2012 — Article 4 — General jurisdiction of a court of a Member State to rule on the succession as a whole — National legislation governing international jurisdiction to issue national certificates of succession — European Certificate of Succession)