- Jesuit drama, Latin (Medieval and modern)1
- Jesuits1
- Jewish Rebellion (66-73 A.D.)1
- John VIII Palaeologus, Emperor of the East, 1392-14481
- John, the Apostle, Saint1
- John, the Apostle, Saint--Illustrations1
- Judaism--Controversial literature1
- Judas Iscariot1
- Judgment Day1
- Kingdom of God1
- Kings and rulers--Duties1
- Kings and rulers--Succession1
- Knowledge, Theory of1
- Kölner Dom1
- Labyrinths1
- Language and languages--Philosophy1
- Lathom, Robert de, 13th century1
- Latin drama (Comedy)1
- Latin drama (Tragedy)1
- Latin language, Medieval and modern--Grammar1