Author
- Henricus de Ratisbona1
- Henry Howard, 1st Earl of Northampton1
- Henry of Langenstein1
- Hilduin1
- Hoccleve, Thomas, 1370?-1450?1
- Holy Roman Empire1
- Iacopo Bracciolini1
- Innocent III1
- Jacobus de Cessolis1
- Jacobus de Voragine1
- Jacques Legrand1
- Jakob Wimpfeling1
- James V of Scotland1
- Jean Gerson1
- Jean de Malian1
- Jean de Meun1
- Jerónimo de Vivar1
- Jiménez de Enciso, Andrés1
- Joan Martines1
- Joanna of Austria, Princess of Portugal1