- Gaufridus, Dean of Chartres1
- Geography, Ancient1
- Georgius, of Vicomercato1
- Germany--Augsburg1
- Germany--Bavaria1
- Germany--Franconia1
- Germany--Halberstadt1
- Germany--Regensburg Region1
- Gervasius, Saint and Martyr1
- Gian Galeazzo Sforza, Duke of Milan, 1469-14941
- Giovanni II, Archbishop of Milan, -13541
- Giovio, Paolo, 1483-15521
- Girdle books1
- Globes1
- God (Judaism)--Name1
- God--Knowableness1
- God--Name1
- God--Worship and love1
- Gold tooled bindings1
- Gonzaga Colonna, Vespasiano, duca di Sabbioneta, 1531-15911