Former Owner
- Lucien Gougy1
- Luini, Pacifico (Franciscan priest), active 19th century1
- Lyon Cathedral1
- M. Haimmiller1
- Mario Maffei1
- Mark Lansburgh1
- Mary Schell Collins1
- Matteo Luigi Canonici1
- Mayer Sulzberger1
- Melk Abbey1
- Michel Chasles1
- Michel de Léon1
- Michele Amari1
- Moritz Dessauer1
- Morris Jastrow, Jr.1
- Nicholai von Bodeck1
- Nicolas Fowle1
- Oswald Carl Friedrich von Seilern und Aspang1
- Otto Ege1
- Otto Orren Fisher1