Former Owner
- Johann Michael Schiller1
- Johannes Betrus Ravenoldus1
- Johannes Wigg1
- John Alexander Stewart1
- John Camp Williams1
- John E. Burton1
- John Edgar Ker1
- John Lee1
- John Sotheby1
- John Thomas Beer1
- John Ward, 1st Earl of Dudley1
- Julius de Cardelinis1
- Jérôme Pichon1
- Jān Sipār Khān ibn Rustamdilkhān1
- Kaikhusroo Minocher Jamaspasa1
- Karbalāʼī Muḥammad Ḥusayn Qāsimʹābādī1
- Khouri, Elias Alexander1
- King Lawrence Parker1
- L. Paganthus1
- Lambach Abbey1