Former Owner
- Louis XII of France1
- Maggs Bros Ltd1
- Marc-René de Voyer d'Argenson1
- Marie-Caroline of Bourbon-Two Sicilies, Duchess of Berry1
- Marino Grimani1
- Mary Lusher1
- Maxwell Sommerville1
- Mayer Sulzberger1
- Milton Fischmann1
- Monasterium sanctorum quadraginta martyrum (Treviso Italy)1
- Monastero di Santo Spirito in Verona1
- Morris H. Morgan1
- Muḥammad Anīs Ṭālawī1
- Muḥammad Dhará1
- Muḥammad Riz̤ā1
- Muḥammad ibn Jaʻfar Yaḥyá1
- Muḥammad Ṣadr al-Dīn1
- Muṣṭafa Ṣidḳī1
- Muṣṭafá Ṣidqī1
- Nicolai Briganti1