- Jesuit drama, Spanish1
- Juana, of Austria, Princess of Portugal, 1535-15731
- Landowners1
- Latin language--Study and teaching1
- Latin poetry1
- Leather bindings1
- Lemos, Pedro Fernández de Castro, conde de, 1576-16221
- Liturgical books1
- Magic1
- Manuscripts, European1
- Manuscripts, Galician1
- Manuscripts, Hebrew1
- Maps1
- Margarita, de Austria, Queen, consort of Philip III, King of Spain, 1584-16111
- Marriage (Canon law)1
- Marriage (Canon law)--Dispensations1
- Martyrdom1
- Martyrs1
- Montserrat (Abbey)1
- Moriscos1