Author
- Haşmet1
- Henricus de Ratisbona1
- Henry of Langenstein1
- Hugh of Fouilloy1
- Hugh of Saint-Cher1
- Hâkî Mehmet Efendi1
- Ibn 'Abd al-Barr1
- Ibn Khaldun1
- Ibn al-Farid1
- Ibn al-Imām1
- Ibn al-Tayyib1
- Ibn ʻAbd al-Riḍá1
- Ibrāhīm al-Ḥalabī1
- Innocent III1
- Isidore of Seville1
- Ismail ibn Hammad al-Jawhari1
- Ismāʻīl ibn Abī Bakr Ibn al-Muqrī1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1
- Ja'far Kashfi1
- Jacobus de Cessolis1