Former Owner
- Manuel Fernández del Castillo1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Manṣūr, Abū al-Faz̤l ibn Ghiyāth al-Dīn1
- Marcantonio Contarini1
- Marcantonio V Borghese1
- Marcela Gabriela1
- Marchese Porri-Carcani1
- Marco da Bologna1
- Margaret F. Woodward1
- Margaret Le Seigneur1
- Margaret of Croy1
- Margareta van der Dycke1
- Margaretha van Cleyburg1
- Marguerite de Fontenay1
- Marguerite of Lorraine1
- Maria Riddell1
- Marie Ange-Toussaint Placide de Ferron1
- Marie Cleophe de Sollario1
- Marie Thomas1
- Marie de Albano1