Former Owner
- John Swyntoun1
- Joseph Anton Koch1
- Joseph Whitney1
- José Antonio Conde1
- Juan de Gayferos de Eguiraum1
- Juana I of Castile1
- Julius Hess1
- Jérôme Bignon1
- Kloster Bredelar1
- Lathrop C. Harper, Inc.1
- Laurentius van der Torqel1
- Libreria antiquaria Mediolanum1
- Libreria la Bibliofila1
- Louis II, Count of Flanders1
- Lucien Magne1
- Ludwig Rosenthal's Antiquariaat1
- Léon Gruel1
- Léon Techener1
- Marcela Gabriela1
- Margaret F. Woodward1