- Italy--Genoa1
- Italy--Milan1
- Italy--Naples1
- Italy--Sicily1
- Jaymes, Diego1
- Jesus Christ1
- Jews--Persecutions1
- Jiménez de Cisneros, Francisco, 1436?-15171
- Jiménez de Enciso family1
- Jiménez de Enciso, Andrés1
- Jiménez de Enciso, Diego1
- Jiménez de Enciso, Pedro1
- John II, King of Aragon, 1397-14791
- Juana, of Austria, Princess of Portugal, 1535-1573--Correspondence1
- Judges--Selection and appointment1
- Justa, Saint, -approximately 2871
- Kekchi language1
- Kirchmair, Georg, 1481-15541
- Knights of Malta1
- Land titles--Registration and transfer1