Former Owner
- Luis Fernández de Córdoba y Aragón1
- Luis Mayora1
- Luis Ordoñez1
- Lundell Library1
- Luther Albertus Brewer1
- Lutheran Theological Seminary at Philadelphia1
- Lycée Louis-le-Grand2
- Lydia Thompson Morris3
- Lyon Cathedral1
- Léon Gruel1
- Léon Techener1
- Lālajī Śarmaṇ1
- L’Art Ancien1
- M. De La Tour1
- M. Favia del Core1
- M. Haimmiller1
- M. Lee1
- M. Louise Stowell1
- M. Pierre Guarin1
- Madeleine Cosman1