- Land titles--Registration and transfer1
- Leo X, Pope, 1475-15211
- Machiavelli family1
- Manuscript waste1
- Manuscripts, Greek (Medieval and modern)1
- Manuscripts, Latin (Medieval and modern)1
- Mariano, Fra1
- Marriage1
- Martini, Giovanni1
- Martini, Luca, 1980-1
- Mathematical recreations1
- Medici, Alamanno de'1
- Medici, Alessandro de', 1510-15371
- Medici, Andrea de'1
- Medici, Bernardo d'Alamanno de'1
- Medici, Bivigliano de'1
- Medici, Camillo de'1
- Medici, Elisabetta de'1
- Medici, Francesca de'1
- Medici, Giulio de'1