Former Owner
- J. A. Shanley1
- J. Martini1
- J. Paul Getty Museum1
- J. Techener1
- Jacob Henry Burn1
- Jacobus de Muffoni1
- James H. Stewart1
- James K. Moffitt1
- James Tanis1
- Jay Gould1
- Jesuit College of San Bartolomeo1
- Joachim Guerrinus de Montefegatesio1
- Johannes Baptista Siccus1
- John Bolton1
- John Carter1
- John Egerton, 1st Earl of Bridgewater1
- John Gunthorpe1
- John Hope, 1st Marquess of Linlithgow1
- John Lee1
- John Morgan1