Article 20 of Council Regulation (EC) No 2201/2003 of 27 November 2003 concerning jurisdiction and the recognition and enforcement of judgments in matrimonial matters and the matters of parental responsibility, repealing Regulation (EC) No 1347/2000, must be interpreted as not allowing, in circumstances such as those of the main proceedings, a court of a Member State to take a provisional measure in matters of parental responsibility granting custody of a child who is in the territory of that Member State to one parent, where a court of another Member State, which has jurisdiction under that regulation as to the substance of the dispute relating to custody of the child, has already delivered a judgment provisionally giving custody of the child to the other parent, and that judgment has been declared enforceable in the territory of the former Member State.