Author
- Jakob Christoph Blarer von Wartensee1
- Jean Bénard1
- Joachim Bendel1
- Joanna I of Naples1
- Joannes Dominicus de Marchis1
- Joannes Thomas Beltamino1
- Joham de Vernoils1
- Johannes Cnipius1
- Johannes Lemp1
- Johannes Mellarinus1
- Johannes Tostius1
- John Chrysostom1
- John Cornelius1
- John Eyr1
- John Frederick II of Saxony1
- John Gage1
- John II of Castile1
- John Montgomery1
- John de Beauchesne1
- John of Ibelin1