Former Owner
- Lālajī Śarmaṇ1
- M. Haimmiller1
- Madeleine Cosman1
- Madyājñika Devakṛṣṇa1
- Maheśa1
- Malachia Ormanian1
- Malvezzi de' Medici1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Mario Maffei1
- Mark Lansburgh1
- Markus Fugger1
- Marvin-L. Colker1
- Mary Augusta Strachey1
- Mary Schell Collins1
- Marāṭha, Raṅganātha1
- Mauni, Bālaṃbhaṭa1
- Maximilian Henry of Bavaria1
- Mazliah Finzi1
- Maḥmūd bin Nāṣir1
- Melk Abbey1