Author
- Hugh Ripelin of Strasburg1
- Humphrey Wellys1
- Ibn al-Farid1
- Ibn al-Khabbaz1
- Ibn al-Nafis1
- Ibn al-Tayyib1
- Ibn al-Wardi1
- Ibrāhīm ibn Muḥammad ʻIṣām al-Asfarāyīnī1
- Igreja e Convento de Santa Maria de Aguiar1
- Ildibrandinus1
- Imam Birgivi1
- Immanuel Tremellius1
- Innocent IV1
- Izz al-Din ibn 'Abd al-Salam1
- Jacobo Bellenden1
- Jacopo Nannis de Piccolomini1
- Jacques Lempereur1
- Jahangir Mirza Qajar1
- Jakob Christoph Blarer von Wartensee1
- Jalal Al-Din Al-Khabazi1