- Marie de Médicis, Queen, consort of Henry IV, King of France, 1573-16421
- Marriage customs and rites1
- Mary Magdalene, Saint1
- Mass (Music)1
- Mass--Celebration1
- Medici, Lorenzo de', 1449-14921
- Medicine1
- Medicine, Magic, mystic, and spagiric1
- Medicine--Study and teaching1
- Mendoza, Antonio de, approximately 1492-15521
- Mexico--Culhuacán1
- Mexico--Zempoala (Hidalgo)1
- Mexico--Zumpango (Municipio)1
- Military campaigns1
- Mineral industries1
- Miners1
- Mines and mineral resources1
- Mining law1
- Missions1
- Monardes, Nicolás, approximately 1512-15881