Former Owner
- Molin1
- Monasterio de El Paular1
- Monasterium sanctorum quadraginta martyrum (Treviso Italy)1
- Monastero di Santo Spirito in Verona1
- Monastery of Benevívere1
- Monastery of Saint Peter (Erfurt, Germany)1
- Monica Franklyn1
- Monsieur de Bel Air1
- Monteles, Avraham de1
- Monteles, Yosef de1
- Monē tou Timiou Prodromou1
- Moritz Dessauer1
- Moritz Joseph Johann von Dietrichstein1
- Morot1
- Morris H. Morgan4
- Morris Harold Saffron1
- Morris Jastrow, Jr.1
- Mortimer Loeb Schiff1
- Morton Davis Mitchell1
- Morton Parker Eden1