Former Owner
- Jeremiah Styles1
- Jeremy C. Jackson1
- Jeronimus Maelens1
- Jerónimos Monastery8
- Jesuit College of San Bartolomeo1
- Joachim Guerrinus de Montefegatesio4
- Joachim Windhag1
- Joannes Aloysius Brochman1
- Joannes Angelus de Crema1
- Joannes Hainricus Ebron zu Wildenberg1
- Joannes Salzperg1
- Joaquín García Icazbalceta3
- Joaquín Gómez de la Cortina2
- Johan C. Jackson1
- Johan Laborya de Mossach1
- Johan Meerman2
- Johane Bowntyene1
- Johann David Baier1
- Johann Heinrich van Ess24
- Johann von Firmian1