- Manuscripts, Greek (Medieval and modern)1
- Manuscripts, Latin (Medieval and modern)1
- Manuscripts, Spanish1
- Manuscripts, Turkish1
- Mariano, Fra1
- Medici, Lorenzo de', 1449-14921
- Messiah--Judaism1
- Metochites, Theodoros, 1270-13321
- Muḥammad, Prophet, -6321
- Mālik ibn Anas, -7951
- Netherlands--Amsterdam1
- Orthodox Eastern Church1
- Papal legates1
- Pastry1
- Pasture, Right of1
- Paul V, Pope, 1552-16211
- Perfumes--Religious aspects--Islam1
- Personal correspondence1
- Philipp I, Landgraf von Hessen, 1504-15671
- Poland1