Author
- Jamālī Ardistani1
- Jean Barthélémy1
- Jean Germain1
- Jean Gerson1
- Jean Le Fèvre de Ressons1
- Jean de Lignieres1
- Jean de Wavrin1
- Johann Herolt1
- Johannes Leonis1
- Johannes Milis1
- John Burgh1
- John Capgrave1
- John Chrysostom1
- John Gower1
- John Mandeville1
- John XXII1
- John of Genoa1
- John of Seville ?1
- John, Duke of Berry1
- Jordan von Quedlinburg1