- Medici, Andrea de'2
- Medici, Bernardo de'2
- Medici, Bivigliano de'2
- Medici, Carlo de'2
- Medici, Fabrizio de'2
- Medici, Giovanni de'2
- Medici, Lorenzo de', 1449-14922
- Medicinal plants2
- Medicine, Medieval2
- Medicine--Formulae, receipts, prescriptions2
- Medicine--Study and teaching2
- Mediterranean Sea2
- Mevleviyeh2
- Military campaigns2
- Missions2
- Monastic and religious life--Middle Ages2
- Monasticism and religious orders for women2
- Monasticism and religious orders--Middle Ages2
- Monsters2
- Monsters in literature2