- Hieronymites1
- History, Military1
- Holy Week services1
- Horses--Diseases1
- House furnishings1
- House of Burgundy, 1384-14771
- Human anatomy1
- Human reproduction1
- Humorous poetry, German1
- Hungary1
- Hussites1
- Hymns, Latin1
- Hypothesis1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjiz1
- Ildobrandini, Geronimo1
- Illumination of books and manuscripts, Flemish1
- Illumination of books and manuscripts, French1
- Illumination of books and manuscripts, Gothic1
- Illumination of books and manuscripts, Renaissance1
- Indulgences1