- 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 of women--Middle Ages1
- Monastic and religious life--Early church1
- Monasticism and religious orders for women1
- Monenergism1
- Monks1
- Monteny, John de, Sir1
- Montserrat (Abbey)1
- More, Thomas, Saint, 1478-15351
- Moriscos1
- Morocco--Casablanca1
- Morocco--Meknès1
- Morocco--Salé1
- Mosteiro de S. Mónica (Lisbon, Portugal)1
- Murad IV, Sultan of the Turks, 1612-16401
- Music1
- Music theory1
- Music, Greek and Roman1