Former Owner
- James Tregaskis1
- Jan Six VII1
- Joachim Guerrinus de Montefegatesio1
- Joannes Hainricus Ebron zu Wildenberg1
- Johannes Abezier1
- Johannes Wigg1
- Johannes de Helb1
- Johannes zu Reitheim1
- Johem Spiess1
- John A. Murphy1
- John Anderson1
- John D. Stanitz1
- John Eliot Hodgkin1
- John Fletcher Hurst1
- John James Lewis1
- John Read Dore1
- John Savile1
- John Singer Sargent1
- John Wright1
- Joseph Anton Koch1