- Medici, Lorenzo de', 1449-14921
- Medicine, Magic, mystic, and spagiric1
- Mensural notation1
- Methodology1
- Middle East1
- Military art and science1
- Military campaigns1
- Miracles1
- Misogyny1
- Missals (Service books)1
- 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
- Monastic and religious life of women1
- Monastic and religious life--Early church1
- Monasticism and religious orders1
- Monasticism and religious orders for women1
- Morelli, Lorenzo Matteo, active 1480-14811
- Mugiello (Italy)1