- Lollards1
- Lord's Supper--Adoration1
- Lord's Supper--Catholic Church1
- Luther, Martin, 1483-15461
- Magic1
- Magic squares1
- Magic--Religious aspects--Christianity1
- Manuscripts, Czech1
- Manuscripts, European1
- Manuscripts, French1
- Mary Magdalene, Saint1
- Maximilian I, Holy Roman Emperor, 1459-15191
- Medical astrology1
- Medicinal plants1
- Medicine, Magic, mystic, and spagiric1
- Medicine--Formulae, receipts, prescriptions1
- Medicine--Study and teaching1
- Meistersinger1
- Middle East--Palestine1
- Monasticism and religious orders1