Forum necessitatis
Article 11
Where no court of a Member State has jurisdiction pursuant to Article 4, 5, 6, 7, 8 or 10, or when all the courts pursuant to Article 9 have declined jurisdiction and no court of a Member State has jurisdiction pursuant to Article 9(2) or Article 10, the courts of a Member State may, on an exceptional basis, rule on a matrimonial property regime case if proceedings cannot reasonably be brought or conducted or would be impossible in a third state with which the case is closely connected. The case must have a sufficient connection with the Member State of the court seised.