- Manuscripts, Syriac1
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- Mayenne, Charles de Lorraine, Duc de, 1554-16111
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- Medicine1
- Medina Sidonia, Alonso Pérez de Guzmán, duque de, 1550-16191
- Medina Sidonia, Juan Alonso de Guzmán, Duque de, -15581
- Medina, Francisco de, 1544-16151
- Memory1
- Meneses, Pedro de, Conde de Vila Real, -14371
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- Michelangelo Buonarroti, 1475-15641