Former Owner
- Manoel S. Pinto1
- Marc-René de Voyer d'Argenson1
- Margaret Barclay Wilson1
- Margaret of Croy1
- Marie Cleophe de Sollario1
- Marie de Albano1
- Mary Schell Collins1
- Matteo Barresi1
- Matteo Luigi Canonici1
- Matthaeus Lupin1
- Matthew Bloxam1
- Matthias Corvinus1
- Maurice Johnson1
- Melchior Daniel Neubronner1
- Melk Abbey1
- Menaḥem Naḥum, ha-Leṿi, mi-ḳ.ḳ. Dribin1
- Michael Tomkinson1
- Michel Chasles1
- Michele Amari1
- Michiel family1