Author
- Diodorus Siculus1
- Eusebius of Caesarea1
- Gemistus Pletho1
- Ghiyāth al-Dīn Manṣūr Dashtakī Shīrāzī1
- Gratian1
- Guglielmo Perlano1
- Honorat Bovet1
- Hugh Ripelin of Strasburg1
- Ibn 'Abd al-Barr1
- Ibn Aqil1
- Ibn Battal1
- Ibn Khaldun1
- Ibn Malik1
- Ibn Quzman1
- Ibn al-Qasim1
- Ibrāhīm ibn Muḥammad ʻIṣām al-Asfarāyīnī1
- Innocent III1
- Isidore of Seville1
- Ismāʻīl Qarah Kamāl1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1