Author
- Ibn al-Tayyib1
- Ibn al-Wardi1
- Ibn ʻAbd al-Riḍá1
- Ibrāhīm al-Ḥalabī1
- Isidore of Seville1
- Ismāʻīl ibn Abī Bakr Ibn al-Muqrī1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1
- Jacobus de Voragine1
- Jalal al-Din al-Suyuti1
- Jalaluddin al-Mahalli1
- Jerome1
- John Cassian1
- John Gower1
- John of Glastonbury1
- Juan Ortiz Campoy1
- Kamal Khujandi1
- Khushal Khan Khattak1
- Kirmānī, Muḥammad ibn ʻAlī1
- Leon Battista Alberti1
- Matteo dei Libri1