Former Owner
- Lycée Louis-le-Grand1
- Lālajī Śarmaṇ1
- Maggs Bros Ltd1
- Mahdī ibn Muṣṭafá al-Ḥusaynī1
- Manoel Pereira da Sylva1
- Manookjee Sorabjee Ashburner1
- Manuel John Johnson1
- Marc-René de Voyer d'Argenson1
- Marie de Bretagne d'Avaugour1
- Marie-Caroline of Bourbon-Two Sicilies, Duchess of Berry1
- Marilyn Carbonell1
- Marino Grimani1
- Mary Lusher1
- Marāṭha, Raṅganātha1
- Matthew Donadski1
- Maximilian Henry of Bavaria1
- Maxwell Sommerville1
- Maḥmūd bin Nāṣir1
- Maḥmūd ibn al-Shaykh al-Fattāḥ1
- Michael M. Zagayski1