Former Owner
- James Tanis1
- James Tregaskis1
- Jan Six VII1
- Janet Cartwright1
- Janārdana Koṇḍadeva Gāḍagīla18
- Jayarāmācārya1
- Jaʻfar ʻAlī1
- Jean E. Austin1
- Jean Jules Olinger1
- Jean P. McClenahan2
- Jean de Carvalho Martins Ferrão de Castelo Branco1
- Jean-Frédéric Waldeck1
- Jezzar Pasha3
- Jivanji Jamshedji Modi1
- Jo. Otho1
- Joachim Guerrinus de Montefegatesio4
- Joachim Windhag1
- Joannes Salzperg1
- Johan Gröf1
- Johann David Baier1