- Martino, Odino S., active 15th century1
- Massachusetts--Boston1
- Mathematics, Medieval1
- Medici, Lorenzo de', 1449-14921
- Medicine1
- Medicine, Arab1
- Mevleviyeh1
- Middle East--Jerusalem1
- Military art and science1
- Minhāj al-ṭālibīn (Nawawī)1
- Missals1
- Missals (Service books)1
- Monarchy1
- Monasteries1
- Monasterio de San Jerónimo de Monte Olivete (Sant Pere de Ribes, Spain)1
- Monasterio de San Jerónimo de la Murtra (Badalona, Spain)1
- Monasterio de San Jerónimo del Valle de Hebrón (Barcelona, Spain)1
- Morelli, Lorenzo Matteo, active 1480-14811
- Nineteenth century1
- North Macedonia--Skopje1