Author
- Hugh of Saint-Cher1
- Ibn Bardis1
- Ibn Battal1
- Ibn Hisham Al-Ansari1
- Ibn Kathir1
- Ibn Luyun1
- Ibn Manzur1
- Ibn Qudamah1
- Ibn al-Kharrāṭ1
- Ibn al-Salah1
- Ibn ʿAqīl1
- Ibn-al-ʿAṭṭār, ʿAlī Ibn-Ibrāhīm1
- Ibrāhīm ibn Muḥammad Aʻlam al-Baṭalyawsī1
- Innocent IV1
- Innocent V1
- Isaac Alfasi1
- Isaac ben Joseph of Corbeil1
- Ismail al-Isfahani1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1