- Jesuits1
- Jewish diaspora1
- Jewish magic1
- John VIII Palaeologus, Emperor of the East, 1392-14481
- Joseph (Son of Jacob)1
- Julius III, Pope, 1487-15551
- Jābir ibn Ḥayyān1
- Kirchmair, Georg, 1481-15541
- Knights of Malta1
- Land titles--Registration and transfer1
- Land value taxation1
- Latin drama (Tragedy)1
- Latin literature--Study and teaching1
- Latin poetry1
- Latin poetry, Medieval and modern1
- Lawyers1
- Lazari, Marlinus Micarias1
- Learning and scholarship1
- Lefèvre d'Étaples, Jacques, -15361
- Legends1