- Italy--Parma1
- Italy--Perugia1
- Italy--Pontine Marshes1
- Italy--Rimini1
- Italy--Sermoneta1
- Italy--Vercelli (Province)1
- Italy--Vicenza1
- James, the Greater, Saint1
- Jeremiah (Biblical prophet)1
- Jerónima de la Asunción, madre, 1555-16301
- Jesuit drama, Latin (Medieval and modern)1
- Jewish (culture or style)1
- Jewish law1
- Jews--Legal status, laws, etc.1
- Joachim, Saint1
- Job (Biblical figure)1
- Johannes filius Roberti de Cruce1
- John IV, King of Portugal, 1604-16561
- John Manuel, Prince of Portugal, 1537-15541
- John V, King of Portugal, 1689-17501