A brief note on the entirely correct judgment in  EWHC 2845 (Comm) Citicorp Trustee Company aor v Maan Abdulwahed et al.
Macdonald Eggers J at 51 held ‘Article 33 of the Brussels Recast Regulation allows the Court to stay the proceedings where jurisdiction is based on articles, 4, 7, 8 or 9 of the Regulation, but there is no similar provision in respect of jurisdiction assumed under article 25. In this case, the Court must assume jurisdiction in accordance with article 25. It is mandatory’.
(Handbook of) EU private international law, 2nd ed. 2016, Chapter 2, Heading 2.2.4 (International impact of the Brussels I Recast Regulation), Heading 188.8.131.52.2.