- Ludwig IV, Holy Roman Emperor, 1282?-13471
- Lutheran Church1
- Lutheran Church--Controversial literature--Catholic authors1
- Machiavelli family1
- Magic--Religious aspects--Christianity1
- Magnificat (Music)1
- Malatesta family1
- Malatesta, Sigismondo Pandolfo, signore di Rimini, 1417-14681
- Manners and customs1
- Manuscripts, Catalan1
- Manuscripts, Czech1
- Manuscripts, English1
- Manuscripts, Yiddish1
- Maritime law1
- Marriage (Roman law)1
- Martini, Luca, 1980-1
- Mathematical recreations1
- Małogoszcz (Poland)1
- Medical astrology1
- Medici, Camillo de'1