- Little office of the Immaculate Conception2
- Lollards2
- Loredano, Leonardo, doge of Venice, 1438-15212
- Love2
- Love poetry, Latin (Medieval and modern)2
- Luca, Jacopo di2
- Ludwig IV, Holy Roman Emperor, 1282?-13472
- Lutheran Church2
- Magna Carta2
- Manuscripts, Greek2
- Manuscripts, Portuguese2
- Maritime law2
- Martini, Cornelia2
- Martini, Giovanni2
- Martini, Roberto2
- Mass--Celebration2
- Materia medica, Vegetable2
- Mathematics, Greek2
- Medea, consort of Aegeus, King of Athens (Mythological character)2
- Medici, Alamanno de'2