Former Owner
- John Roland Abbey1
- John Vyfyan1
- Joseph E. Widener1
- José Antonio Conde1
- Judah ben Moses, ha-Rofe, ha-Kohen1
- Justin MacCarthy Reagh1
- Keith Jarvis1
- Kenneth X. Robbins1
- Kloster Rebdorf1
- L. C. Harper1
- Laurence Hilliard1
- Leicester Harmsworth1
- Leonardo Lapiccirella1
- Lima Public Library1
- Lionel Tollemache, 4th Earl of Dysart1
- Llanthony Priory1
- Louis II, Count of Flanders1
- Louis N. Cassett1
- Lucrezio Palladio degli Olivi1
- Ludwig Rosenthal1