- Ludwig IV, Holy Roman Emperor, 1282?-13471
- Magic squares1
- Magic--Religious aspects--Christianity1
- Magnificat (Music)1
- Malatesta family1
- Malatesta, Sigismondo Pandolfo, signore di Rimini, 1417-14681
- Malayalam language1
- Malikites1
- Manichaeism1
- Manners and customs1
- Manuscripts, American1
- Manuscripts, Czech1
- Manuscripts, German (Middle High)1
- Manuscripts, Malayalam1
- Manuscripts, Portuguese1
- Manuscripts, Syriac1
- Manār al-anwār fī al-uṣūl (Nasafī, ʻAbd Allāh ibn Aḥmad)1
- Mariano, Fra1
- Marriage1
- Marriage (Roman law)1