- Marriage (Canon law)1
- Marriage (Canon law)--Dispensations1
- Marshals1
- Marucelli, Benedetto1
- Marucelli, Francesco, 1625-17031
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Bernardo d'Alamanno de'1
- Medici, Carlo de'1
- Medici, House of1
- Medina, Francisco de, 1544-16151
- Montserrat (Abbey)1
- Naples (Kingdom)1
- Patience1
- Paul III, Pope, 1468-15491
- Philip III, King of Spain, 1578-16211
- Philosophy1
- Poetry1
- Popes--Temporal power1
- Poverty--Religious aspects--Christianity1