Author
- Honorat de Bueil, seigneur de Fontaines1
- Immanuel Bonfils1
- Isaac Israeli ben Joseph1
- Jacobo Bellenden1
- Jacobus Balbi1
- Jacopo Nannis de Piccolomini1
- Jacopo Piccolomini-Ammannati1
- Jean Gerson1
- Jean Marot1
- Joachim Bendel1
- Joanna I of Naples1
- Joannes Dominicus de Marchis1
- Johannes Lemp1
- John Chrysostom1
- John Eyr1
- John Felton1
- John Gage1
- John of Lancaster, 1st Duke of Bedford1
- John, Duke of Berry1
- Julius II1