- Gondi, Caterina1
- Gondi, Giovanbattista1
- Gospel of Nicodemus1
- Gothic cursive1
- Grace (Theology)1
- Greek literature1
- Gregorian chants--Instruction and study1
- Gregory XV, Pope, 1554-16231
- Guglielmo, da Varignana, approximately 1270-13391
- Guidiccioni, Giovanni, 1500-15411
- Half bindings1
- Hebrew language--Grammar1
- Henry IV, King of France, 1553-16101
- Henry VIII, King of England, 1491-15471
- Heroides (Ovid)1
- History, Ancient1
- History, Military1
- Horn (Musical instrument)1
- Horsemanship--Equipment and supplies1
- Horses--Diseases1