- Manuscripts, Catalan1
- Manuscripts, Portuguese1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Matthei, Bernardino1
- Małogoszcz (Poland)1
- Methodology1
- Michigan--Kalamazoo1
- 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 life1
- Monastic and religious life of women1
- Monasticism and religious orders--Middle Ages1
- Monasticism and religious orders--Rules1
- Monks1
- Montmorency family1
- Montúfar, Alonso de, active 1512-15701
- Morelli, Lorenzo Matteo, active 1480-14811
- Moriscos1