Former Owner
- Laura Hurd Motion1
- Laurence Hilliard1
- Laurence Vaux1
- Laurent Campagne1
- Laurentius van der Torqel1
- Law Society1
- LeMare1
- Legoué1
- Leonard Grey, 1st Viscount Grane1
- Leonardus Martinotius1
- Leopold Gruber1
- Lepeletier de Rosanbo1
- Librairie Tross1
- Library of the Dominicans of Paris1
- Libreria antiquaria Mediolanum1
- Libri, Edoardo, active 20th century1
- Lionardo di Paolo Adimari1
- Lisa Norris Elkins1
- Llanthony Priory1
- Lodi Cathedral1