- Medina Sidonia, Juan Alonso de Guzmán, Duque de, -15581
- Medina, Francisco de, 1544-16151
- Mediterranean Sea1
- Meistersinger1
- Mendoza, Antonio de, approximately 1492-15521
- Metochites, Theodoros, 1270-13321
- Mexico--Culhuacán1
- Mexico--Perote1
- Mexico--Veracruz-Llave (State)1
- Mexico--Zumpango (Municipio)1
- Michele, Lorenzo de'1
- Michele, Olivo di1
- Middle Ages1
- Middle East1
- Middle East--Jerusalem1
- Middle East--Jerusalem (Latin Kingdom)1
- Military religious orders1
- Mineral industries1
- Miners1
- Mines and mineral resources1