- Jews29
- Jews--Dietary laws1
- Jews--Education1
- Jews--Legal status, laws, etc.3
- Jews--Politics and government1
- Jews--Social life and customs1
- Jiménez de Cisneros, Francisco, 1436?-15171
- John I, King of Portugal, 1357-14332
- John II, King of Aragon, 1397-14791
- John IV, King of Portugal, 1604-16561
- John Manuel, Prince of Portugal, 1537-15541
- John V, King of Portugal, 1689-17501
- John the Baptist's Day1
- John, Duke of Burgundy, 1371-14191
- John, King of England, 1167-12161
- Jonah (Biblical prophet)1
- Joseph (Son of Jacob)1
- Juana, of Austria, Princess of Portugal, 1535-15732
- Juana, of Austria, Princess of Portugal, 1535-1573--Correspondence1
- Judaism1