Author
- Jerome1
- Joannes Thomas Beltamino1
- Johannes Nider1
- Johannes von Kastl1
- Johannis Hieronymus1
- John Burgh1
- John Chrysostom1
- John Felton1
- John Versor1
- John XXI1
- John Zonaras1
- Josephus1
- Juan de Torquemada1
- Kingdom of England1
- Kingdom of Naples1
- Laurentius Cynthius1
- Louis XII of France1
- Lucian of Samosata1
- Maffeo Vegio1
- Malavolti family1