Author
- Hugh Bigod, 3rd Earl of Norfolk1
- Hugh Broughton1
- Hugh Talemache1
- Hugo Trottus1
- Humbert of Romans1
- Humphrey Wellys1
- Iachetus Italianus1
- Iacobo Cattaneo Lagomarsino1
- Iacopo da Benevento1
- Ibn Abi Zayd al-Qayrawani1
- Ibn Ghazi al-Miknasi1
- Ibn Habib al-Halabi1
- Ibn Hijjah al-Hamawi1
- Ibn Kemal1
- Ibn Luyun1
- Ibn Nubata1
- Ibn Sab'in1
- Ibn al-Farid1
- Ibn al-Jazari1
- Ibn al-Kharrāṭ1