Former Owner
- Marie-François Duchesne de Beaumanoir1
- Marino Grimani1
- Martin Breslauer1
- Mary Lacaita1
- Matthias Corvinus1
- Maurice Kann1
- Mayfair Rare Books and Manuscripts1
- Menaḥem Naḥum, ha-Leṿi, mi-ḳ.ḳ. Dribin1
- Meschatin La Faye family1
- Michael Wodhull1
- Michiel family1
- Mikhail Golitsyn1
- Millard Meiss1
- Molin1
- Morris Jastrow, Jr.1
- Nathaniel Sherman Bouton1
- Nettie Goldsmith Naumburg1
- Niccolò Albergati1
- Nicholas B. Scheetz1
- Nicolai Briganti1