Former Owner
- Margaret Le Seigneur1
- Marguerite of Lorraine1
- Mary Schell Collins1
- Mercantile Library Company1
- Messieurs Du Trieu2
- Morot1
- Muḥammad Shams al-Dīn Naqshband Nūrī1
- Nicholas B. Scheetz1
- Oliver Henry Perkins3
- Paul Gottschalk1
- Peter Arrell Brown Widener1
- Peter Arrell Brown Widener II1
- Petrus Giraud1
- Petrus Jensenius1
- Petrus Ysermans1
- Philip Hurd1
- Philip Kerr, 11th Marquess of Lothian1
- Philippe Hurault de Cheverny1
- Pierre Gélis-Didot1
- Pius XI1