Article 54
The provisions of 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.
However, judgments given after the date of entry into force of this Convention in proceedings instituted before that date shall be recognized and enforced in accordance with the provisions of Title III if jurisdiction was founded upon rules which accorded with those provided for either in Title II of this Convention or in a convention concluded between the State of origin and the State addressed which was in force when the proceedings were instituted.
TITLE VII
RELATIONSHIP TO OTHER CONVENTIONS
Sanicentral GmbH v René Collin
In proceedings brought after the Convention entered into force, a jurisdiction clause in an employment contract concluded before that date remains valid even if, when the contract was made, the national law then in force would have treated that clause as void.