- Medici, Francesca de'1
- Medici, Giulio de'1
- Medici, Lorenzo de', 1449-14921
- Medici, Niccolò de'1
- Medici, Nicolo de'1
- Medici, Ottavia Altoviti1
- Medicine, Ayurvedic--Formulae, receipts, prescriptions1
- Medicine--Study and teaching1
- Meditation--Jainism1
- Mediterranean Region1
- Meistersinger1
- Melanchthon, Philip, 1497-1560. De officio principum1
- Memorial books1
- Memory1
- Mental health--Religious aspects1
- Meteorologica (Aristotle)1
- Middle East--Jerusalem (Latin Kingdom)1
- Midrash1
- Midrash Tanḥuma1
- Military art and science1