- Louis, Saint, Bishop of Toulouse, 1274-12971
- Love1
- Love poetry, Arabic1
- Love poetry, English (Middle)1
- Love--Philosophy1
- Lumʻah al-Dimashqīyah (Shahīd al-Awwal, Muḥammad ibn Makkī)1
- Lute music1
- Lydgate, John, 1370?-1451?1
- Magi1
- Mahayana Buddhism--Doctrines1
- Malchus, Saint1
- Malikites1
- Mameluke illumination of books and manuscripts1
- Manichaeism1
- Manuscripts, Aramaic1
- Manuscripts, Armenian1
- Manuscripts, Byzantine1
- Manuscripts, Chagatai1
- Manuscripts, European1
- Manuscripts, Greek (Medieval and modern)1