Former Owner
- Jacob Riegel1
- Jean Jules Olinger1
- Jean-Baptiste Huzard1
- Jo. Otho1
- Joannes Angelus de Crema1
- Joannes Salzperg1
- Johann Heinrich von Speyr-Passavant1
- Johannes Betrus Ravenoldus1
- John Alexander Stewart1
- John C. Jackson1
- John Fenn1
- John Roland Abbey1
- John Ruskin1
- John Sotheby1
- John Ward, 1st Earl of Dudley1
- Juan Burgueño1
- Julian Burgueño1
- Jérôme Pichon1
- L. Paganthus1
- Lambach Abbey1