- Manuscripts, Catalan1
- Manuscripts, English1
- Manuscripts, German1
- Manuscripts, Greek (Medieval and modern)1
- Manuscripts, Medical1
- Marbled paper bindings1
- Marriage (Canon law)1
- Marriage (Canon law)--Dispensations1
- Marriage law1
- Marshals1
- Martini, Luca, 1980-1
- Marucelli, Benedetto1
- Marucelli, Francesco, 1625-17031
- Mary, Queen of Scots, 1542-15871
- Mathematical recreations1
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Alamanno de'1
- Medici, Bernardo de'1
- Medici, Elisabetta de'1