- Levy family1
- Luca, Jacopo di2
- Machiavelli family1
- Malavolti, Bartolomeo de1
- Malavolti, Donusdei Margarita de1
- Malavolti, Francesco di Bartolomeo de1
- Malavolti, Orlando Donusdei de1
- Mancini, Girolamo, 1832-19241
- Manuele, Luigi1
- Manuscripts1
- Manuscripts, English2
- Manuscripts, European8
- Manuscripts, French6
- Manuscripts, Hebrew1
- Manuscripts, Italian16
- Manuscripts, Latin53
- Manuscripts, Latin (Medieval and modern)1
- Manuscripts, Medieval10
- Manuscripts, Renaissance55
- Manuscripts, Sanskrit1