- Lazari, Marlinus Micarias1
- Lello, Broccholio di1
- Lello, Tina di1
- Malavolti, Bartolomeo de1
- Malavolti, Donusdei Margarita de1
- Malavolti, Francesco di Bartolomeo de1
- Malavolti, Orlando Donusdei de1
- Manuscripts, European1
- Manuscripts, French1
- Mattei, Teo1
- Matthei, Bernardino1
- Medici, Alessandro de', 1510-15371
- Medici, Giuliano de', 1453-14781
- Medici, House of1
- Merchants1
- Meschiati, Giovanni1
- Military religious orders1
- Monasticism and religious orders1
- Monasticism and religious orders for women1
- Monasticism and religious orders--Middle Ages1