Former Owner
- Ismāʻīl ibn al-Ḥājj ʻĪsá Jurayj al-Muhannā1
- James Clerke1
- Jan Six VII1
- Johann David Baier1
- Johannes Wigg1
- John Church1
- John D. Stanitz3
- John Frederick Lewis1
- Joost Ritman1
- Joseph Barrois2
- Judith Lady Montefiore College3
- Laurence William Hodson1
- Lawrence J. Schoenberg9
- Leonard S. Unger1
- Lionel Tollemache, 4th Earl of Dysart1
- London School of Jewish Studies1
- Ludovico Settala1
- Ludwig Rosenthal1
- L’Art Ancien1
- Manūchihr Nukhastīn Āṣaf Qājār1