- Marriage (Canon law)--Dispensations1
- Marriage Agreements1
- Marriage customs and rites, Medieval1
- Marriage--Moral and ethical aspects1
- Martellini, Vincenzio1
- Martial1
- Martini, Girolamo1
- Martini, Luca, 1980-1
- Martino, Barone di1
- Martino, Odino S., active 15th century1
- Martino, Vanni di1
- Martinus, Polonus, -12791
- Mary, Blessed Virgin, Saint, in the liturgy1
- Mary, of Bethany, Saint1
- Mass (Music)1
- Massacre of the Holy Innocents in art1
- Massaran, Isaac de1
- Masses1
- Masses, Unaccompanied1
- Massi, Francesca1