Author
- Jakob Wimpfeling1
- Jean Gerson1
- Jean de Malian1
- Joannes Oliva1
- Joannes de Crivelli1
- Johannes Agricola1
- Johannes Gherinx1
- Johannes Hymmonides1
- Johannes Nider1
- Johannes ab Indagine1
- John Chrysostom1
- John Gower1
- John XXII1
- John of Howden1
- Juan Luis Vives1
- Julian of Toledo1
- Leon Battista Alberti1
- Lorenzo Valla1
- Lucan1
- Lucian of Samosata1