- Marshals1
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Carlo de'1
- Medicinal plants1
- Medina, Francisco de, 1544-16151
- Meistersinger1
- Miscellanea1
- Monasticism and religious orders for women1
- Monteny, John de, Sir1
- Montserrat (Abbey)1
- Naples (Kingdom)1
- Nineteenth century1
- Patience1
- Paul III, Pope, 1468-15491
- Peace of Westphalia (1648)1
- Peasant uprisings1
- Philip II, King of Spain, 1527-15981
- Philip III, King of Spain, 1578-16211
- Piccolomini, Nerius Gabrielli de1