Former Owner
- Louis d'Harcourt1
- Louis-Jean-Nicolas Monmerqué1
- Lucien Delamarre1
- Lucien Gougy1
- Lucien Graux1
- Lucien Magne1
- Lucrezio Palladio degli Olivi1
- Lucy Evans Chew2
- Ludovico Settala1
- Ludwig Rosenthal2
- Ludwig Rosenthal's Antiquariaat2
- Luigi Arrigoni2
- Luigi Celotti10
- Luigi Clerici1
- Luigi Serra di Cassano1
- Luini, Pacifico (Franciscan priest), active 19th century1
- Luis Mayora1
- Lundell Library1
- Lycée Louis-le-Grand1
- Lydia Thompson Morris1