Former Owner
- Lambach Abbey1
- Lathrop C. Harper, Inc.1
- Laurence Claiborne Witten II1
- Laurent Campagne1
- Legoué1
- Leo Olschki1
- Lewis L. Gould1
- Libreria antiquaria Mediolanum1
- Lisa Norris Elkins1
- Loftus Bland1
- Lorenzo Berdute1
- Louis Charles Elson1
- Louis César de La Baume Le Blanc1
- Louis Hercule Timoléon de Cossé-Brissac1
- Luigi Serra di Cassano1
- Manoel S. Pinto1
- Manuel John Johnson1
- Marcianus F. Rossi1
- Marilyn Carbonell1
- Mario Pedro Arata1