- Love songs1
- Ludovico Sforza, Duke of Milan, 1452-15081
- Machiavelli family1
- Manuscript maps1
- Manuscripts, Catalan1
- Maps1
- Marbled paper bindings1
- Marginalia1
- Mariano, Fra1
- Martellini, Vincenzio1
- Materia medica1
- Maurice, Saint, -approximately 2871
- Maximian, Emperor of Rome, approximately 240-3101
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Alamanno de'1
- Medici, Bernardo de'1
- Medici, Niccolò de'1
- Medicine, Magic, mystic, and spagiric1
- Mediterranean Sea1
- Middle Ages1