Former Owner
- Linda Ehrsam Voigts5
- Lindwer, Willy2
- Lionardo di Paolo Adimari1
- Lionel Tollemache, 4th Earl of Dysart2
- Lisa Kiser12
- Lisa Norris Elkins1
- Lisa Unger Baskin1
- Little family1
- Llanthony Priory1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn3
- Lodi Cathedral1
- Lodovicus Saltariellus1
- Loftus Bland1
- Lohanī, Viṣṇudatta1
- London School of Jewish Studies3
- Long Island Historical Society, Maine1
- Lorenzo Antonio da Ponte1
- Lorenzo Berdute1
- Lorenzo de Olivera1
- Louis Bourguet1