Article 66
1\. This Regulation shall apply only to legal proceedings instituted and to documents formally drawn up or registered as authentic instruments after the entry into force thereof.
2\. However, if the proceedings in the Member State of origin were instituted before the entry into force of this Regulation, judgments given after that date shall be recognised and enforced in accordance with Chapter III,
(a) if the proceedings in the Member State of origin were instituted after the entry into force of the Brussels or the Lugano Convention both in the Member State or origin and in the Member State addressed;
(b) in all other cases, if jurisdiction was founded upon rules which accorded with those provided for either in Chapter II or in a convention concluded between the Member State of origin and the Member State addressed which was in force when the proceedings were instituted.
CHAPTER VII
RELATIONS WITH OTHER INSTRUMENTS
G.M.K.-Z.B.M. v S.O.
For the purposes of Article 66(1) of Regulation No 1215/2012, proceedings are instituted on the date the applicant brought the action, not on the later date when the defendant lodged a statement of opposition against the resulting judgment seeking review of the case.
Wolf Naturprodukte GmbH v SEWAR spol. s r.o.
For Regulation No 44/2001 to apply to the recognition and enforcement of a judgment under Article 66(2), the Regulation must have been in force, at the time the judgment was delivered, in both the Member State of origin and the Member State addressed.