Former Owner
- Juan Burgueño1
- Juana I of Castile1
- Julian Burgueño1
- Justin MacCarthy Reagh1
- Konrad von Maurer1
- Laurence Claiborne Witten II1
- Laurent Campagne1
- Legoué1
- Libreria antiquaria Mediolanum1
- Libreria la Bibliofila1
- Lisa Norris Elkins1
- Loftus Bland1
- Lorenzo Berdute1
- Louis César de La Baume Le Blanc1
- Luigi Serra di Cassano1
- Manuel John Johnson1
- Mary Schell Collins1
- Mary W. T. Dickinson1
- Merlemont family1
- Museo Cavaleri1