- Indians of Mexico--Missions1
- Indulgences1
- International relations1
- Italy1
- Italy--Florence1
- Italy--Naples1
- Jews1
- Juana, of Austria, Princess of Portugal, 1535-15731
- Ludovico Sforza, Duke of Milan, 1452-15081
- Manuscripts, French1
- Manuscripts, Italian1
- Mary, Queen of Scots, 1542-15871
- Medici, Lorenzo de', 1449-14921
- Mexico--Mexico City1
- Michelangelo Buonarroti, 1475-15641
- Montúfar, Alonso de, active 1512-15701
- Mordecai (Biblical figure)1
- Morelli, Lorenzo Matteo, active 1480-14811
- Morocco bindings1
- News1