- Marbled paper bindings1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Marie de Médicis, Queen, consort of Henry IV, King of France, 1573-16421
- Marignis, Niccolò de1
- Marina, Saint1
- Marini, Nicola Antonio1
- Maro, Guglielmo1
- 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