Case C-658/17: Judgment of the Court (First Chamber) of 23 May 2019 (request for a preliminary ruling from the Sąd Okręgowy w Gorzowie Wielkopolskim — Poland) — Proceedings brought by WB (Reference for a preliminary ruling — Judicial cooperation in civil matters — Regulation (EU) No 650/2012 — Article 3(1)(g) and (i) — Definition of a ‘decision’ in a matter of succession — Definition of an ‘authentic instrument’ in a matter of succession — Legal classification of the national deed of certification of succession — Article 3(2) — Definition of a ‘court’ — Failure by the Member State to notify the European Commission of notaries as non-judicial authorities exercising judicial functions like courts)