Author
- John Wycliffe1
- John XXI1
- John XXII1
- John Zonaras1
- John de Beauchesne1
- John de Breton1
- John de Seccheville1
- John of Damascus1
- John of Garland1
- John of Saxony1
- John of Seville1
- John of Wales1
- John Dokeianos1
- Joseph Albaradani1
- Joseph Haslewood1
- Joseph Nasi1
- Joseph Trani1
- Joseph ben Judah ibn Aknin1
- Joseph ben Moses Sarfati1
- Joseph ibn Abitur1