- Medici, Elisabetta de'1
- Medici, Fernando de'1
- Medici, Giulio de'1
- Medici, Lorenzo di Pierfrancesco de', 1463-15031
- Medici, Nicolo de'1
- Medici, Raffaele de'1
- Medicinal plants1
- Medicine, Magic, mystic, and spagiric1
- Medicine, Medieval1
- Medicine--Formulae, receipts, prescriptions1
- Medina Sidonia, Alonso Pérez de Guzmán, duque de, 1550-16191
- Medina Sidonia, Juan Alonso de Guzmán, Duque de, -15581
- Medina, Francisco de, 1544-16151
- Megilat Purim al Miṣriyin1
- Meistersinger1
- Melanchthon, Philip, 1497-1560. De officio principum1
- Mendoza, Antonio de, approximately 1492-15521
- Mensural notation1
- Mexico--Culhuacán1
- Mexico--Zempoala (Hidalgo)1