- Italy--Naples1
- James, the Greater, Saint1
- Jerónima de la Asunción, madre, 1555-16301
- Jesuit drama, Spanish1
- Jesuits1
- Jewish interpretations of Jesus Christ1
- Jews1
- Juana, of Austria, Princess of Portugal, 1535-15731
- Latin language--Study and teaching1
- Latin poetry1
- Laudatory poetry, Latin1
- Lawyers1
- Lemos, Pedro Fernández Ruiz de Castro y Osorio, conde de, active 17th century1
- Lemos, Pedro Fernández de Castro, conde de, 1576-16221
- Letter of Aristeas1
- León, Luis de, 1527-15911
- Liturgical books1
- Liturgics1
- Magic1
- Maldonado family1