- Macaronic poetry1
- Macaronic verse1
- Manicules1
- Manuscripts, English (Middle)1
- Manuscripts, French1
- Marie de Médicis, Queen, consort of Henry IV, King of France, 1573-16421
- Marriage1
- Marriage (Canon law)1
- Marriage (Canon law)--Dispensations1
- Marriage--Religious aspects1
- Marriage--Religious aspects--Christianity1
- Marshals1
- Marucelli, Benedetto1
- Marucelli, Francesco, 1625-17031
- Mary, Blessed Virgin, Saint1
- Mary, of Bethany, Saint1
- Massachusetts--Boston1
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Carlo de'1