Former Owner
- Mademoiselle de Malberghe1
- Maggs Bros Ltd1
- Margaret of Croy1
- Mark Lansburgh1
- Marvin-L. Colker1
- Mary Bloch1
- Mary Schell Collins1
- Michel de Léon1
- Mirmellus Arnandi1
- Moissac Abbey1
- 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