- Jiménez de Enciso, Pedro1
- John II, King of Aragon, 1397-14791
- Juana, of Austria, Princess of Portugal, 1535-15731
- Judges--Selection and appointment1
- Justa, Saint, -approximately 2871
- Kekchi language1
- Kirchmair, Georg, 1481-15541
- Knights of Malta1
- Land titles--Registration and transfer1
- Latin language1
- Law--Interpretation and construction1
- Lawyers1
- Learning and scholarship1
- Leather bindings1
- Legacies1
- Legal instruments1
- Legaspi, Margarita de1
- Leocadia, Saint, -3031
- Lepe Carvajal, Alonso de1
- Libri amicorum1