- Lettering1
- Local officials and employees1
- Logic1
- Love poetry, English (Middle)1
- Magi1
- Malavolti, Bartolomeo de1
- Malavolti, Donusdei Margarita de1
- Malavolti, Francesco di Bartolomeo de1
- Malavolti, Orlando Donusdei de1
- Manuscripts, Arabic1
- Manuscripts, European1
- Manuscripts, French1
- Manuscripts, German (Middle High)1
- Manuscripts, Turkish1
- Marginalia1
- Massachusetts--Williamstown1
- Materia medica, Vegetable1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medicine, Medieval1
- Mediterranean Region1