Former Owner
- Mary Stanley, Countess of Derby1
- Mary, Queen of Scots1
- Matthew Bloxam1
- Maurice Johnson1
- Meschatin La Faye family1
- Moritz Dessauer1
- Morot1
- Mrs. E.J. Hooper1
- Museo Cavaleri1
- Nanna Corbinello1
- Nicholai von Bodeck1
- Nonnberg Abbey1
- Otto Ege1
- P. Pigeot1
- Paul Gottschalk1
- Paul Louis Feiss1
- Paul Riant1
- Petrus Jensenius1
- Petrus Ysermans1
- Philip Carteret Webb1