- 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
- Montúfar, Alonso de, active 1512-15701
- Morales family1
- Morales, Andrés de, active 1683-16851
- Morales, Francisco de, active 1683-16851
- Morales, Nicolás de, active 1683-16851
- Morelli, Lorenzo Matteo, active 1480-14811
- Music1
- Nahuas--Land tenure1
- Nahuas--Religion1
- Naveda family1
- New Spain. Viceroy1
- Notaries1
- Ordinances, Municipal1
- Orta, Garcia de, active 16th century1
- Ortiz family1
- Ovando, Nicolás de, approximately 1460-15111