Former Owner
- John Sotheby1
- John Thomas Beer1
- John Ward, 1st Earl of Dudley1
- Joseph Barrois2
- Juan Burgueño1
- Judith Lady Montefiore College6
- Julian Burgueño1
- Julius de Cardelinis1
- Jérôme Pichon1
- Jān Sipār Khān ibn Rustamdilkhān1
- Kaikhusroo Minocher Jamaspasa1
- Karbalāʼī Muḥammad Ḥusayn Qāsimʹābādī1
- Karl Hermann Berendt1
- Khammāsh, Aḥmad1
- Khouri, Elias Alexander1
- King Lawrence Parker1
- Kloster Rebdorf1
- L. Paganthus1
- Lambach Abbey1
- Lancino Curti1