- Lemos, Pedro Fernández Ruiz de Castro y Osorio, conde de, active 17th century1
- Lemos, Pedro Fernández de Castro, conde de, 1576-16221
- Leocadia, Saint, -3031
- Letter of Aristeas1
- Letters, Papal1
- León, Luis de, 1527-15911
- Literature, Medieval1
- Logic, Medieval1
- Lorraine, Nicolas-François, duc de, 1609-16701
- Love poetry, French1
- Lyric poetry1
- Macaronic poetry1
- Macaronic verse1
- Manuel I, King of Portugal, 1469-15211
- Manuscript maps1
- Manuscripts, Amharic1
- Manuscripts, Anglo-Norman1
- Manuscripts, Aramaic1
- Manuscripts, Batak1
- Manuscripts, Dutch1