Former Owner
- James Rathwell Page1
- James Sotheby1
- James Turle1
- James West1
- Jaʻfar ʻAlī1
- Jean E. Austin1
- Jean Leclerc1
- Jean de Carvalho Martins Ferrão de Castelo Branco1
- Joannes Hainricus Ebron zu Wildenberg1
- Joaquín García Icazbalceta1
- John A. Savage Jr.1
- John Bigham, 1st Viscount Mersey1
- John Caryll1
- John E. Burton1
- John Egerton, 2nd Earl of Bridgewater1
- John Egerton, 3rd Earl of Bridgewater1
- John Holt1
- John Josias Conybeare1
- John Lee1
- John Lumley, 1st Baron Lumley1