- Italy--Tuscany1
- Italy--Vicenza1
- Jesuit drama, Latin (Medieval and modern)1
- Jesuits1
- Jewish Rebellion (66-73 A.D.)1
- Jewish diaspora1
- Jewish philosophy1
- Jewish religious poetry1
- Joachim, Saint1
- John II, King of Portugal, 1455-14951
- John VIII Palaeologus, Emperor of the East, 1392-14481
- John, the Baptist, Saint1
- Joseph (Son of Jacob)1
- Judaism--Roman rite1
- Judaism--Roman rite--Liturgy1
- Judgment Day1
- Julian, of Eclanum, Bishop, 380-approximately 4551
- Kansas--Lawrence1
- Kings and rulers--Heraldry1
- Knowledge, Theory of1