Author
- John Koukouzeles1
- John Larry England1
- John Scottowe1
- John Sergeant1
- John Shirley1
- John Skyrrow1
- John Tiptoft, 1st Earl of Worcester1
- John Versor1
- John XXI1
- John Zonaras1
- John de Breton1
- John de Mowbray, 2nd Baron Mowbray1
- John de Seccheville1
- John of Glastonbury1
- John of Howden1
- John of Ibelin1
- John of Lancaster, 1st Duke of Bedford1
- John of Saxony1
- John of Seville1
- John Dokeianos1