- Henry IV, King of Castile and Leon, 1425-14741
- Henry VI, King of England, 1421-14711
- Henry VII, King of England, 1457-15091
- Hepay, Peter de, 13th century1
- Hermits1
- Hilarion, Saint, approximately 291-approximately 3711
- Historia de regibus Gothorum, Vandalorum, et Suevorum (Isidore, of Seville, Saint)1
- Historiated initials1
- Historiography1
- History of Biblical events1
- History, Ancient1
- Homage (Feudal law)1
- Horses1
- Hoskin, John, -approximately 13631
- Hoskins family1
- Hospitals1
- Humanism1
- Hungary1
- Hybrid books1
- Illumination of books and manuscripts, Gothic1