Former Owner
- Llanthony Priory1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- Loftus Bland1
- Louis II, Count of Flanders1
- Louis Jean Gaignat1
- Louis Lucien Bonaparte1
- Louis N. Cassett1
- Louis XII of France1
- Lucien Delamarre1
- Lucien Magne1
- Ludwig Rosenthal's Antiquariaat1
- Lycée Louis-le-Grand1
- Lyon Cathedral1
- Léon Gruel1
- Léon Techener1
- M. Haimmiller1
- Maffeo Pinelli1
- Marcela Gabriela1
- Marco da Bologna1
- Margaret F. Woodward1