- Mary, Blessed Virgin, Saint1
- Maximus, of Turin, Saint, active 4th century-5th century1
- Medicine1
- Medicine, Medieval1
- Medicine--Formulae, receipts, prescriptions1
- Monasticism and religious orders1
- Monasticism and religious orders--Rules1
- Morocco bindings1
- Natural history1
- Netherlands1
- Numbers (Provenance)1
- Ordinatio (Duns Scotus, John)1
- Papal documents1
- Parables1
- Pharmacology1
- Physical appearance of Jesus Christ1
- Poetry1
- Popes1
- Prayers and devotions1
- Prescriptions, formulae, receipts, etc.1