- Marriage (Canon law)1
- Marriage (Canon law)--Dispensations1
- Marriage law1
- Marshals1
- Martini, Luca, 1980-1
- Mathematical recreations1
- Maurice, Saint, -approximately 2871
- Maximian, Emperor of Rome, approximately 240-3101
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Medical care1
- Medici, Bernardo d'Alamanno de'1
- Medici, Giuliano de', 1453-14781
- Medici, Lorenzo de', 1449-14921
- Medici, Piero di Lorenzo de', 1472-15031
- Medina, Francisco de, 1544-16151
- Meditations1
- Mediterranean Region1
- Mediterranean Sea--Adriatic Sea1
- Middle Ages1
- Miniature painting1