Former Owner
- Laurence Kirby1
- Laurent Campagne1
- Legoué1
- Leo Olschki1
- Libri, Edoardo, active 20th century1
- Lisa Norris Elkins1
- Louis Bourguet1
- Lutheran Theological Seminary at Philadelphia1
- Lydia Thompson Morris1
- Maksymilian Mielzynski1
- Marchese Porri-Carcani1
- Margaret F. Woodward1
- Margaret Le Seigneur1
- Margaret of Croy1
- Marguerite de Belleville1
- Marguerite de Fontenay1
- Marguerite of Lorraine1
- Marie Ange-Toussaint Placide de Ferron1
- Marion Lawrence1
- Martinus Nijhoff1