- Intellectual life1
- Isabella I, Queen of Spain, 1451-15041
- Islamic law1
- Italy--Milan1
- Jaymes, Diego1
- Jews--Persecutions1
- Juan II, King of Castile and Leon, 1405-14541
- Juana, la Loca, Queen of Castile, 1479-15551
- Juana, of Austria, Princess of Portugal, 1535-15731
- Judaism1
- Justa, Saint, -approximately 2871
- Justice, Administration of1
- Ladron de Guevara family1
- Land titles--Registration and transfer1
- Leases1
- Leather bindings1
- Leocadia, Saint, -3031
- Lepe Carvajal, Alonso de1
- Limp bindings1
- Local officials and employees1