Former Owner
- Mary Bloch1
- Mary Schell Collins1
- Mary Talbot, Countess of Shrewsbury1
- Michel de Léon1
- Mirmellus Arnandi1
- Moissac Abbey1
- Mortimer Loeb Schiff1
- Morton Davis Mitchell1
- Muriel Agnes Fry1
- Nathaniel Sherman Bouton1
- Newman F. McGirr1
- Nicholas B. Scheetz1
- Orlandus de Fatiis1
- Otto Ege1
- P. Pigeot1
- Paolo Vimercati Sozzi1
- Paul Riant1
- Paul de Berthou1
- Petrus Giraud1
- Philip Kerr, 11th Marquess of Lothian1