Article 1878. Insured Event

(1) The insured event shall be the fact giving rise to the insured’s liability that occurred during the liability period of the insurance contract unless the parties to an insurance contract for commercial or professional purposes define the insured event with reference to other criteria such as the claim made by the victim.
(2) When the contracting parties define the insured event with reference to the claim made by the victim, cover shall be granted in respect of claims made within the liability period or within a subsequent period of no less than the prescription period applicable to the liability and which are based on a fact occurred before the end of the liability period. The insurance contract may exclude cover on the basis that, at the time of conclusion of the contract, the applicant was or ought to have been aware of circumstances which he should have expected to give rise to claims.