Author
- Holy Roman Empire1
- House of Borgia1
- House of Gondi1
- House of della Rovere1
- Hugh Broughton1
- Humphrey Wellys1
- Ibn Abi Zayd al-Qayrawani1
- Ibn Hajar al-Haytami1
- Ibn Marzuq1
- Ibn Sa‛īd al- Ḥillī1
- Ibn al-Mulaqqin1
- Ibrāhīm ibn Muḥammad ḥarīthī1
- Imam Birgivi1
- Imbert Feutrier1
- Immanuel Tremellius1
- Ippolito Libri1
- Isaac Alfasi1
- Isaac the Blind1
- Ismāʻīl Ghāzānī1
- Ismāʻīl ibn ʻAlī Ibn Muʻallá1