Former Owner
- Librairie Damascène Morgand1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- Louis César de La Baume Le Blanc1
- Lydia Thompson Morris1
- M. De La Tour1
- Madame Théophile Belin1
- Maggs Bros Ltd1
- Maksymilian Mielzynski1
- Marc-René de Voyer d'Argenson1
- Margaret Le Seigneur1
- Marguerite of Lorraine1
- Marion Lawrence1
- Matteo Luigi Canonici1
- Michel Chasles1
- Morot1
- Nicolas Fowle1
- Nicolas Yemeniz1
- Otto Orren Fisher1
- Paul Gottschalk1
- Pease, John William, 1820-19001