Article 171-8 of the French Civil Code
When the formalities provided for in Article 171-2 have been complied with and the marriage has been celebrated in the forms customary in the country, it shall be entered in the civil status registers unless new elements based on serious evidence lead to the presumption that the marriage is null and void under Articles 144, 146, 146-1, 147, 161, 162, 163, 180 ou 191. In the latter case, the diplomatic…