- Local government--Law and legislation1
- Love poetry, Latin (Medieval and modern)1
- Machiavelli family1
- Malatesta family1
- Malatesta, Sigismondo Pandolfo, signore di Rimini, 1417-14681
- Manuscripts, Catalan1
- Martellini, Vincenzio1
- Martini, Luca, 1980-1
- Mary, Blessed Virgin, Saint1
- Mathematical recreations1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Camillo de'1
- Medici, Carlo Bernardo Alamanni de'1
- Medici, Niccolò de'1
- Mediterranean Sea1
- Merchants1
- Middle East--Jerusalem1
- Military campaigns1
- Monasticism and religious orders for women--Rules1
- Monochord1