1. This Convention shall apply only to legal proceedings instituted and to documents formally drawn up or registered as authentic instruments after its entry into force in the State of origin and, where recognition or enforcement of a judgment or authentic instruments is sought, in the State addressed.

2. However, if the proceedings in the State of origin were instituted before the entry into force of this Convention, judgments given after that date shall be recognised and enforced in accordance with Title III:

(a) if the proceedings in the State of origin were instituted after the entry into force of the Lugano Convention of 16 September 1988 both in the State of origin and in the State addressed;

(b) in all other cases, if jurisdiction was founded upon rules which accorded with those provided for either in Title II or in a convention concluded between the State of origin and the State addressed which was in force when the proceedings were instituted.