Author
- Joannes Dominicus de Marchis1
- Joannes Oliva1
- Joannes Thomas Beltamino1
- Joham de Vernoils1
- Johanna Hawkeslowe (Sr.)1
- Johannes Auerbach1
- Johannes Cnipius1
- Johannes Mellarinus1
- Johannes Meyer1
- Johannes Paulus1
- Johannes Tostius1
- Johannes von Kastl1
- John Cleseby1
- John Cornelius1
- John Eyr1
- John Frederick II of Saxony1
- John II of Castile1
- John de Beauchesne1
- John of Glastonbury1
- John of Ibelin1