Paschal Triduum
A Nuptial Mass is a Ritual Mass within which the sacrament of matrimony is celebrated. If one of a couple being married in a Catholic church is not a Catholic, the rite of matrimony outside Mass is to be followed. However, if the non-Catholic has been validly baptized, then, in exceptional cases and provided the bishop of the diocese gives permission, it may be considered suitable to celebrate the marriage within Mass, except that, according to the general law, Communion is not given to the non-Catholic ("Rite of Marriage", 8). The Nuptial Mass contains special prayers for the couple and, in the ordinary form of the Roman Rite, may be offered at any time of the liturgical year, except during the Paschal Triduum.