Former Owner
- Louis Hercule Timoléon de Cossé-Brissac1
- Louis XII of France1
- Maggs Bros Ltd1
- Manuel John Johnson1
- Marc-René de Voyer d'Argenson1
- Marcianus F. Rossi1
- Marie de Bretagne d'Avaugour1
- Marie-Caroline of Bourbon-Two Sicilies, Duchess of Berry1
- Marilyn Carbonell1
- Marino Grimani1
- Mario Pedro Arata1
- Mary Lusher1
- Matteo Luigi Canonici1
- Matthaeus Lupin1
- Maxwell Sommerville1
- Melchior Daniel Neubronner1
- Menaḥem Naḥum, ha-Leṿi, mi-ḳ.ḳ. Dribin1
- Michiel family1
- Mikhail Golitsyn1
- Monastery of Our Lady of the Angels of Churubusco1