Former Owner
- Jacob Suter1
- James C. Byrne1
- Jean Jules Olinger1
- Jean-Frédéric Waldeck1
- Jo. Otho1
- Joachim Windhag1
- Joannes Salzperg1
- Johan Gröf1
- Johann Heinrich von Speyr-Passavant1
- Johannes Betrus Ravenoldus1
- John Alexander Stewart1
- John Cochran1
- John Henry Ellis1
- John Sotheby1
- John Ward, 1st Earl of Dudley1
- Joseph Anton Koch1
- José Esteve Juan1
- José Fernando Ramírez1
- Juan de Iriarte y Cisneros1
- Julius Heinrich Jeidels1