- Greece--Euboea Island1
- Greece--Kerkyra3
- Greek drama (Tragedy)1
- Greek language--Grammar1
- Greek letters1
- Greek literature1
- Greek literature--Translations into Latin1
- Gregorian chants100
- Gregorian chants--Instruction and study1
- Gregorian chants--Manuscripts31
- Gregory I, Pope, approximately 540-6045
- Gregory IX, Pope, approximately 1170-12412
- Gregory XIII, Pope, 1502-15852
- Grifoni, Antonio de'1
- Grifoni, Michele de'1
- Grisaille painting1
- Gritti, Andrea, 1455-15381
- Guardi, Gabriele1
- Guardian and ward8
- Gucciarelli, Buongiuliano de1