- Man-woman relationships1
- Mandeville, John, Sir1
- Manners and customs1
- Manuscripts, Anglo-Norman1
- Manuscripts, Aramaic1
- Manuscripts, English (Old)1
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- Margaret, of Antioch, Saint1
- Marginalia1
- Marriage (Canon law)1
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- Marriage customs and rites1
- Martino, Odino S., active 15th century1
- Mary, Blessed Virgin, Saint, in the liturgy--Orthodox Eastern Church1
- Mary, Queen of Scots, 1542-15871
- Materia medica, Vegetable1
- Mathematics1