Author
- Johannes von Freiburg1
- Johannes von Kastl1
- Johannes von Werdea1
- Johannis Hieronymus1
- John Capgrave1
- John Cassian1
- John Cleseby1
- John Dominici1
- John Halgren of Abbeville1
- John II of Castile1
- John Shirley1
- John Tiptoft, 1st Earl of Worcester1
- John Versor1
- John Wycliffe1
- John XXI1
- John Zonaras1
- John of Garland1
- John of Glastonbury1
- John of Howden1
- John of Lancaster, 1st Duke of Bedford1