Author
- Johannes Lichtenberger1
- Johannes Meyer1
- Johannes Nider1
- Johannes Paulus1
- Johannes de Sacrobosco1
- Johannes von Kastl1
- Johannis Hieronymus1
- John Burgh1
- John Capgrave1
- John Cleseby1
- John Felton1
- 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 Glastonbury1