- Holy Roman Empire. Reichstag1
- Holy Roman Empire. Reichstag (1570 : Speyer, Germany)1
- Holy Week services1
- Horace1
- Horsemanship1
- Horses1
- Horses--Diseases1
- House of Burgundy, 1384-14771
- House of Valois, 1328-15891
- Human anatomy1
- Human reproduction1
- Humorous poetry, German1
- Hussites1
- Hymns1
- Hymns, Ethiopic1
- 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