Former Owner
- Madeleine Cosman1
- Madyan Qusuni1
- Madyājñika Devakṛṣṇa1
- Maffeo Pinelli1
- Maheśa1
- Maksymilian Mielzynski1
- Malachia Ormanian1
- Malvezzi de' Medici1
- Mannheimer Hofbibliothek1
- Manoel S. Pinto1
- Manuel Fernández del Castillo1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Marcantonio Contarini1
- Marcantonio V Borghese1
- Marcela Gabriela1
- Marchese Porri-Carcani1
- Marco da Bologna1
- Margaret F. Woodward1
- Margaret Le Seigneur1
- Margaret of Croy1