Former Owner
- Marguerite de Belleville1
- Marguerite of Lorraine1
- Marie de Bretagne d'Avaugour1
- Marie-François Duchesne de Beaumanoir1
- Marion Lawrence1
- Mary Elizabeth Holte1
- Mary Schell Collins1
- Mary W. T. Dickinson1
- Matteo Luigi Canonici1
- Michael Greenberg1
- Michael Tomkinson1
- Michel Guibé1
- Moissac Abbey1
- Morot1
- New York Academy of Medicine1
- Nicholas Chevalier1
- Nicholas Herry1
- Nicolas Rauch1
- Norman H. Strouse1
- Notre-Dame de Macourt monastery1