- Legal documents1
- Legal instruments1
- Lemos, Pedro Fernández de Castro, conde de, 1576-16221
- Letter of Aristeas1
- León, Luis de, 1527-15911
- Liturgical books1
- Lorraine, Nicolas-François, duc de, 1609-16701
- Macaronic poetry1
- Macaronic verse1
- Magic1
- Manuscript waste1
- Manuscripts, French1
- Manuscripts, Galician1
- Margarita, de Austria, Queen, consort of Philip III, King of Spain, 1584-16111
- Maritime law1
- Marriage1
- Marriage (Canon law)1
- Marriage (Canon law)--Dispensations1
- Marshals1
- Martyrdom1