Where a court of a Contracting State is seised of a claim which is principally concerned with a matter over which the courts of another Contracting State have exclusive jurisdiction by virtue of Article 16, it shall declare of its own motion that it has no jurisdiction.

Where a defendant domiciled in one Contracting State is sued in a court of another Contracting State and does not enter an appearance, the court shall declare of its own motion that it has no jurisdiction unless its jurisdiction is derived from the provisions of this Convention.

The court shall stay the proceedings so long as it is not shown that the defendant has been able to receive the document instituting the proceedings or an equivalent document in sufficient time to enable him to arrange for his defence, or that all necessary steps have been taken to this end.

The provisions of the foregoing paragraph shall be replaced by those of Article 15 of the Hague Convention of 15 November 1965 on the service abroad of judicial and extrajudicial documents in civil or commercial matters, if the document instituting the proceedings or notice thereof had to be transmitted abroad in accordance with that Convention.