- Lenzi family1
- Letters, Papal1
- Libel and slander--Religious aspects--Islam1
- Literary style1
- Literature, Medieval1
- Logic1
- Lord's Supper1
- Ludwig IV, Holy Roman Emperor, 1282?-13471
- Madrasah al-ʻUmarīyah (Damascus, Syria)1
- Madrasah al-Ṭūlūnīyah (Jerusalem)1
- Manuscripts, Armenian1
- Manuscripts, English (Middle)1
- Manuscripts, Judeo-Arabic1
- Manuscripts, Turkish1
- Manār al-anwār fī al-uṣūl (Nasafī, ʻAbd Allāh ibn Aḥmad)1
- Maqdisī, Muḥammad ibn Aḥmad, -1501 or 15021
- Marriage--Annulment (Islamic law)1
- Mashāriq al-anwār (Ṣaghānī, al-Ḥasan ibn Muḥammad)1
- Maydūmī, Muḥammad ibn Muḥammad, -13531
- Medici, Bernardo d'Alamanno de'1