- Hugh, of Lincoln, Saint, 1140-12001
- Humanists1
- Ibn ʻAllān, Muḥammad ʻAlī ibn Muḥammad, 1588-1648. Ḥusn al-ʻibārah fī naẓm al-istiʻārah1
- Ildephonsus, Saint, approximately 610-6671
- Inheritance and succession (Islamic law)1
- Inscriptions, Latin1
- Interfaith relations1
- Isabella I, Queen of Spain, 1451-15041
- Islamic law--Interpretation and construction1
- Italy--Siena1
- Italy--Vicenza1
- Jesus Christ1
- Jewish interpretations1
- Jewish interpretations of Jesus Christ1
- Jewish law1
- Jews1
- Jiménez de Cisneros, Francisco, 1436?-15171
- John II, King of Aragon, 1397-14791
- Judaism1
- Justa, Saint, -approximately 2871