Former Owner
- Marienstiftsgymnasium1
- Markus Fugger1
- Mary Augusta Strachey1
- Mary Lusher1
- Marāṭha, Raṅganātha1
- Matthew Donadski1
- Mauni, Bālaṃbhaṭa1
- Maximilian Henry of Bavaria1
- Mazliah Finzi1
- Maḥmūd al-Ustādār, d. 1396 or 71
- Maḥmūd bin Nāṣir1
- Maḥmūd ibn al-Shaykh al-Fattāḥ1
- Menno Hertzberger1
- Michael Krupp1
- Mistrie, Sita Ram, Pandit1
- Mitchell Starrett Buck1
- Mobed Framji Fardunji Madan1
- Mobed Hormazdyar Mobed Khodabaksh1
- Mohammed bin Hamed bu Osman1
- Monastero di Santo Spirito in Verona1