- Medici, Alessandro de', 1510-15371
- Medici, Bastiano de'1
- Medici, Carlo Bernardo Alamanni de'1
- Medici, Elisabetta de'1
- Medici, Fernando de'1
- Medici, Francesca de'1
- Medici, Giulio de'1
- Medici, Lorenzo de', 1449-14921
- Medici, Niccolò de'1
- Medici, Nicolo de'1
- Medici, Ottavia Altoviti1
- Medicine, Arab1
- Medicine, Medieval1
- Medicine--Formulae, receipts, prescriptions1
- Merit (Jewish theology)1
- Middle East--Jerusalem1
- Mints1
- Mishnah1
- Monasticism and religious orders1
- Monte di pietà (Florence, Italy)1