Author
- John II of Castile1
- John XXI1
- John of Ibelin1
- John Dokeianos1
- Joseph ben Moses Sarfati1
- Juan Martínez Silíceo1
- Juan de Mena1
- Juan de Torquemada1
- Juana I of Castile1
- Kingdom of Bohemia1
- Kingdom of France1
- Konrad III. von Soltau1
- Laurentius Cynthius1
- Leo I1
- Leonhard Freisleben1
- Lope de Vega1
- Lorenzo Giacomini1
- Lorenzo Gondi1
- Lorenzo Spirito Gualtieri1
- Louis Hélian1