Author
- Johannes Agricola1
- Johannes Appenzeller1
- Johannes Lichtenberger1
- Johannes Mathesius1
- Johannes Schöner1
- Johannes ab Indagine1
- John Burgh1
- John Cassian1
- John Dominici1
- John Felton1
- John Fortescue1
- John Gower1
- John Larry England1
- John Lydgate1
- John Mandeville1
- John Montgomery1
- John XXI1
- John XXII1
- Jordan von Quedlinburg1
- Joseph Nasi1