Former Owner
- Lucien Gougy1
- Lucien Graux1
- Lucien Magne1
- Ludovico Settala1
- Ludwig Rosenthal2
- Ludwig Rosenthal's Antiquariaat2
- Luigi Arrigoni1
- Luigi Celotti12
- Luigi Cora1
- Luigi Serra di Cassano1
- Luis Escobet1
- Luis Fernández de Córdoba y Aragón1
- Luis Ordoñez1
- Lundell Library1
- Luther Albertus Brewer1
- Lutheran Theological Seminary at Philadelphia1
- Lycée Louis-le-Grand1
- Lydia Thompson Morris3
- Lyon Cathedral1
- Léon Gruel1