Former Owner
- Maggs Bros Ltd2
- Maksymilian Mielzynski1
- Mannheimer Hofbibliothek1
- Margaret Le Seigneur1
- Marguerite of Lorraine1
- Marie-François Duchesne de Beaumanoir1
- Marion Lawrence1
- Morot1
- Paul Gottschalk1
- Peter Arrell Brown Widener1
- Peter Arrell Brown Widener II2
- Philip Hurd1
- Philippe Hurault de Cheverny1
- Phyllis Walter Goodhart Gordan1
- Pierre Gélis-Didot1
- Pierre de La Vacherie1
- Pietro Antonio Crevenna1
- Prieuré Saint-Louis de Poissy1
- René Antoine Thoué1
- Robert H. Sayre1