- Medici, Giulio de'1
- Medici, Luisa de'1
- Medici, Niccolo de'1
- Medici, Nicolo de'1
- Medici, Piero di Lorenzo de', 1472-15031
- Medicine, Magic, mystic, and spagiric1
- Medina, Francisco de, 1544-16151
- Mediterranean Sea1
- Middle Ages1
- Middle East--Jerusalem (Latin Kingdom)1
- Middle East--Palestine1
- Mikveh1
- Military campaigns1
- Monastic and religious life1
- Monasticism and religious orders for women1
- Moneylenders1
- Monogrammed bindings1
- Monte di pietà (Florence, Italy)1
- Monte, Leonora Concini, marchesa di1
- Montserrat (Abbey)1