- Marucelli, Francesco, 1625-17031
- Mathematical recreations1
- Maurice, Saint, -approximately 2871
- Maximian, Emperor of Rome, approximately 240-3101
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Alessandro de', 1510-15371
- Medici, Bastiano de'1
- Medici, Bernardo d'Alamanno de'1
- Medici, Carlo Bernardo Alamanni de'1
- Medici, Fernando de'1
- Medici, Giuliano de', 1453-14781
- Medici, Nicolo de'1
- Medici, Piero di Lorenzo de', 1472-15031
- Mediterranean Region1
- Memory1
- Mercy1
- Middle East1
- Middle East--Jerusalem1
- Misogyny1
- Missals1