Name
- Lopez de Soto, Pedro1
- Lorraine, Charles, Duc de Mayenne, 1554-16111
- Lorraine, Henri, Duc de- Guise1
- Machiavelli, Niccolò, Italian writer and political theorist, 1469-15271
- Mansfeld, Peter Ernst von, Count1
- Mantua, Duchy and Marquisate of. Vincenzo I1
- Marchesi, Marcello1
- Marocco, Family1
- Mary I, of England1
- Mary, Saint, the Blessed Virgin, fl 1st century1
- Mascardi, Agostino, Chamberlain to Urban VIII1
- Mascarenhas, Francisco, Viveroy of the Portuguese Indies1
- Mascareñas, Juan, Alcalde of Vide, Captain of Diu1
- Maschio, Bernardo, Agent del Duque de Urbino1
- Matthias, Holy Roman Emperor, also Matthias II, King of Hungary, 1557-16191
- Maximilian II, Emperor of Germany1
- Medici, Ferdinand I, Grand Duke of Tuscany, nobleman, 1549-16091
- Medicici, Pietro de', Son of Cosmo I, Spanish General1
- Mendez, Sancho1
- Mendoza, Antonio Hurtado, 2nd Conde de Monteagudo, Ambassador to Maximilian II1