Article 19
Where a person (the creditor) has a non-contractual claim upon another (the debtor), and a third person has a duty to satisfy the creditor, or has in fact satisfied the creditor in discharge of that duty, the law which governs the third person's duty to satisfy the creditor shall determine whether, and the extent to which, the third person is entitled to exercise against the debtor the rights which the creditor had against the debtor under the law governing their relationship.
Fonds de Garantie des Victimes des Actes de Terrorisme et d'Autres Infractions (FGTI) v Victoria Seguros SA
In principle, the law governing a third party's subrogated action against the person who caused the damage - including the limitation rules for that action - is the law of the country where the damage occurs.