- Indians of South America--Legal status, laws, etc.1
- Indians of the West Indies1
- Inheritance and succession1
- Inscriptions1
- Insertions (Production)1
- Interfaith relations1
- Isabel, of Coimbra, Queen, consort of Afonso V, King of Portugal, 1432-14551
- Islam1
- Islamic law1
- Italy--Finale Ligure1
- Italy--Florence1
- Italy--Genoa1
- Jerónima de la Asunción, madre, 1555-16301
- Jesuit drama, Spanish1
- Jews--Persecutions1
- Jiménez de Cisneros, Francisco, 1436?-15171
- John II, King of Aragon, 1397-14791
- Juana, la Loca, Queen of Castile, 1479-15551
- Juana, of Austria, Princess of Portugal, 1535-15731
- Judges--Selection and appointment1