- Henry I, King of Castile, 1204-12171
- Henry II, King of Castile, 1333-13791
- Henry III, King of Castile and León, 1379-14061
- Henry IV, King of Castile and Leon, 1425-14746
- Heraldry4
- Hermits1
- Historiated initials1
- History69
- History, Ancient1
- History, Modern1
- Honduras1
- Humor2
- Hungary1
- Ildephonsus, Saint, approximately 610-6671
- Illumination of books and manuscripts10
- Illuminations2
- Indians of Central America1
- Indians of the West Indies1
- Indians, Treatment of3
- Inheritance and succession1