Former Owner
- Julius Hess1
- Katheline Minnis1
- Laurence Claiborne Witten II2
- Laurentius van der Torqel1
- Lawrence J. Schoenberg5
- Leo S. Olschki Editore8
- Leonardo Lapiccirella1
- Leonello d'Este, Marquis of Ferrara1
- Libreria antiquaria Hoepli14
- Libreria antiquaria Mediolanum1
- Libreria la Bibliofila1
- Loftus Bland1
- Louis César de La Baume Le Blanc1
- Ludwig Rosenthal's Antiquariaat1
- Luigi Celotti1
- Léon Gruel1
- Maggs Bros Ltd23
- Margaret F. Woodward1
- Marguerite de Fontenay1
- Marie Ange-Toussaint Placide de Ferron1