- Giovanni II, Archbishop of Milan, -13541
- Girdle books1
- God--Knowableness1
- God--Name1
- Gold tooled bindings1
- Gorus, ser1
- Goths1
- Greece--Cephalonia (Municipality)1
- Greek literature--Translations into Latin1
- Gregory I, Pope, approximately 540-6041
- Gregory XIII, Pope, 1502-15851
- Grief--Religious aspects--Islam1
- Gritti, Andrea, 1455-15381
- Guidiccioni, Giovanni, 1500-15411
- Guy of Warwick (Legendary character)--Romances1
- Hadith1
- Hadith--Commentaries1
- Hadith--Terminology1
- Hadith--Texts1
- Haimo, of Auxerre, -approximately 8551