Former Owner
- Markus Fugger1
- Marvin-L. Colker1
- Mary Augusta Strachey1
- Mary Schell Collins1
- Maximilian Henry of Bavaria1
- Mazliah Finzi1
- Maḥmūd bin Nāṣir1
- Melk Abbey1
- Michael Krupp1
- Michel Chasles1
- Michel de Léon1
- Monastero di Santo Spirito in Verona1
- Monteles, Avraham de1
- Monteles, Yosef de1
- Moritz Dessauer1
- Moritz Joseph Johann von Dietrichstein1
- Muḥammad Dhará1
- Muḥammad Nāfiʻ, active 18581
- Muḥammad Nāṣir al-Dawlah1
- Muḥammad Riz̤ā1