- Hebrew letters4
- Hebrew poetry1
- Henry I, King of Castile, 1204-12171
- Henry II, King of Castile, 1333-13791
- Henry II, King of France, 1519-15593
- Henry III, King of Castile and León, 1379-14061
- Henry IV, King of Castile and Leon, 1425-14747
- Henry IV, King of France, 1553-16101
- Henry VI, King of England, 1421-14711
- Henry VII, King of England, 1457-15091
- Hepay, Peter de, 13th century1
- Heraldry22
- Herbals2
- Heresy1
- Hermits2
- Hidāyah (Marghīnānī, ʻAlī ibn Abī Bakr)3
- Hieronymites2
- High Holidays--Liturgy1
- Hilarion, Saint, approximately 291-approximately 3711
- Hildesheim, Dietrich von1