- Materia medica1
- Mattei, Teo1
- Matteo, Bernardo di1
- Matteo, Giovanni di1
- Matthei, Bernardino1
- Maurice, Saint, -approximately 2871
- Maximian, Emperor of Rome, approximately 240-3101
- Mecco, Francesca di1
- Mecco, Xalento di1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Bernardo d'Alamanno de'1
- Medici, Giovenco de'1
- Medici, Giuliano de'1
- Medici, Lorenzo di Pierfrancesco de', 1463-15031
- Medici, Raffaele de'1
- Medici, Vanne de'1
- Medicine--Study and teaching1
- Mediterranean Region1
- Mellini, Piero1
- Memory1