Former Owner
- Kloster Bredelar1
- Kloster Kuringen1
- Kloster Rebdorf1
- Kulturhistorisches Museum Magdeburg1
- L. C. Harper1
- L. Paganthus1
- Lady Margaret Ayloffe1
- Lajos Graf Apponyi de Nagy-Appony1
- Lancino Curti1
- Latham family1
- Laurence Hilliard1
- Laurence Vaux1
- Laurent Campagne1
- Laurentius van der Torqel1
- Law Society1
- LeMare1
- Legoué1
- Lehn of Denmark1
- Leo Olschki1
- Leonardo Bruni1