Under French law, churches cannot perform legal marriages. The usual sequence of events is a civil ceremony followed by the sacrament of Holy Matrimony in the church.  Civil ceremonies can be done by a local “Mairie” in Paris or by a Justice in the Peace in a civil ceremony in your country. If you are U.S. or UK citizens, the latter is much easier and highly recommended. Please look into the time frame and requirements for civil marriage in your country to avoid difficulty, since we cannot perform your marriage ceremony at the Cathedral without proof of legal marriage. A copy of your legal marriage certificate is due in the Cathedral office no later than the Monday before your wedding.