preceding paragraph with regard to a child habitually resident in a Contracting State shall lapse as soon as the authorities which have jurisdiction under Articles 5 to 10 have taken the measures required by the situation.3. The measures taken under paragraph 1 with regard to a child who is habitually resident in a non-Contracting State shall lapse in each Contracting State as soon as measures required by the situation and taken by the authorities of another State are recognised in the Contracting State in question.Article 121. Subject to Article 7, the authorities of a Contracting State, in whose territory the child or property belonging to the child is present, have jurisdiction to take measures of a provisional character for the protection of the person or property of the child which have a territorial effect limited to the State in question, in so far as such measures are not incompatible with measures already taken by authorities which have jurisdiction under Articles 5 to 10.2. The measures taken under the preceding paragraph with regard to a child habitually resident in a Contracting State shall lapse as soon as the authorities which have jurisdiction under Articles 5 to 10 have taken a decision in respect of the measures of protection which may be required by the situation.3. The measures taken under paragraph 1 with regard to a child who is habitually resident in a non-Contracting State shall lapse in the Contracting State where the measures were taken as soon as measures required by the situation and taken by the authorities of another State are recognised in the Contracting State in question.Article 131. The authorities of a Contracting State which have jurisdiction under Articles 5 to 10 to take measures for the protection of the person or property of the child must abstain from exercising this jurisdiction if, at the time of the commencement of the proceedings, corresponding measures have been requested from the authorities of another Contracting State having jurisdiction under Articles 5 to 10 at the time of the request and are still under consideration.2. The provisions of the preceding paragraph shall not apply if the authorities before whom the request for measures was initially introduced have declined jurisdiction.Article 14The measures taken in application of Articles 5 to 10 remain in force according to their terms, even if a change of circumstances has eliminated the basis upon which jurisdiction was founded, so long as the authorities which have jurisdiction under the Convention have not modified, replaced or terminated such measures.CHAPTER IIIAPPLICABLE LAWArticle 151. In exercising their jurisdiction under the provisions of Chapter II, the authorities of the Contracting States shall apply their own law.2. However, in so far as the protection of the person or the property of the child requires, they may exceptionally apply or take into consideration the law of another State with which the situation has a substantial connection.3. If the child's habitual residence changes to another Contracting State, the law of that other State governs, from the time of the change, the conditions of application of the measures taken in the State of the former habitual residence.Article 161. The attribution or extinction of parental responsibility by operation of law, without the intervention of a judicial or administrative authority, is governed by the law of the State of the habitual residence of the child.2. The attribution or extinction of parental responsibility by an agreement or a unilateral act, without intervention of a judicial or administrative authority, is governed by the law of the State of the child's habitual residence at the time when the agreement or unilateral act takes effect.3. Parental responsibility which exists under the law of the State of the child's habitual residence subsists after a change of that habitual residence to another State.4. If the child's habitual residence changes, the attribution of parental responsibility by operation of law to a person who does not already have such responsibility is governed by the law of the State of the new habitual residence.Article 17The exercise of parental responsibility is governed by the law of the State of the child's habitual residence. If the child's habitual residence changes, it is governed by the law of the State of the new habitual residence.Article 18The parental responsibility referred to in Article 16 may be terminated, or the conditions of its exercise modified, by measures taken under this Convention.Article 191. The validity of a transaction entered into between a third party and another person who would be entitled to act as the child's legal representative under the law of the State where the transaction was concluded cannot be contested, and the third party cannot be held liable, on the sole ground that the other person was not entitled to act as the child's legal representative under the law designated by the provisions of this Chapter, unless the third party knew or should have known that the parental responsibility was governed by the latter law.2. The preceding paragraph applies only if the transaction was entered into between persons present on the territory of the same State.Article 20The provisions of this Chapter apply even if the law designated by them is the law of a non-Contracting State.Article 211. In this Chapter the term "law" means the law in force in a State other than its choice of law rules.2. However, if the law applicable according to