Former Owner
- Michele Amari1
- Miguel de Mayora1
- Millard Meiss1
- Milt Freudenheim1
- Monastery at San Gregorio al Celio1
- Moritz Dessauer1
- Morris H. Morgan1
- Muriel Agnes Fry1
- Murray Anthony Potter1
- Muḥammad Anīs Ṭālawī1
- Muḥammad Dhará1
- Muḥammad Riz̤ā1
- Muḥammad ibn Jaʻfar Yaḥyá1
- Muḥammad Ṣadr al-Dīn1
- Muṣṭafa Ṣidḳī1
- Muṣṭafá Ṣidqī1
- Nathaniel Sherman Bouton1
- Nicholai von Bodeck1
- Nicholas B. Scheetz1
- Nicolas Antoine Labbey de Billy1