Author
- Ibn Jumay‘1
- Ibn al-Khabbaz1
- Ibn al-Nafis1
- Ildibrandinus1
- Innocent IV1
- Izz al-Din ibn 'Abd al-Salam1
- Johan de Arcenay1
- Mahmud ibn Abd al-Rahman al-Isfahani1
- Muhammad ibn Ja'far al-Khara'iti1
- Muḥammad Ibn-Ibrāhīm Ibn-Ǧamāʿa1
- Muḥammad ibn Muḥammad Akhsīkathī1
- Muḥammad ibn ʻAbbād Khilāṭī1
- Muḥammad ibn ʻAbd al-Ḥamīd Usmandī al-Samarqandī1
- Najm ad-Din al-Tufi1
- Piccolomini1
- Piccolomo Oltremonti1
- Podestà of Monticchiello (Italy)1
- Ptolemy1
- Qutb al-Din al-Shirazi1
- Siena1