- Germany--Regensburg1
- Gonçalez el Moxo, Alvar, active 1560-15671
- Gonçalez family1
- Graduals (Chants)1
- Great Britain1
- Gregorian chants--Manuscripts1
- Guzman family1
- Guzman, Alfonso Perez de, 1256-13091
- Henry I, King of Castile, 1204-12171
- Henry II, King of Castile, 1333-13791
- Henry III, King of Castile and León, 1379-14061
- Hermits1
- History, Ancient1
- History, Modern1
- Holy Week music1
- Ildephonsus, Saint, approximately 610-6671
- Inheritance and succession1
- Inquisition1
- Interfaith relations1
- Isagoge (Porphyry)1