Subject to this Regulation, persons domiciled in a Member State shall, whatever their nationality, be sued in the courts of that Member State.

Persons who are not nationals of the Member State in which they are domiciled shall be governed by the rules of jurisdiction applicable to nationals of that State.

Persons domiciled in a Member State may be sued in the courts of another Member State only by virtue of the rules set out in Sections 2 to 7 of this Chapter.

In particular the rules of national jurisdiction set out in Annex I shall not be applicable as against them.

If the defendant is not domiciled in a Member State, the jurisdiction of the courts of each Member State shall, subject to Articles 22 and 23, be determined by the law of that Member State.

As against such a defendant, any person domiciled in a Member State may, whatever his nationality, avail himself in that State of the rules of jurisdiction there in force, and in particular those specified in Annex I, in the same way as the nationals of that State.