Former Owner
- Giuseppe Antonio Saccardini1
- Giuseppe Canonici1
- Giuseppe Franchini1
- Giusto Venier1
- Gladbach Abbey1
- Godefroy Honore1
- Gotha Research Library1
- Great St. Martin Church1
- Grenville Kane1
- Grigorij Sergeevič Stroganov1
- Groenendael Priory1
- Grolier Club1
- Grosvenor, Richard1
- Guilberto Broulin1
- Guilelmus Laing1
- Guillemette Bezard1
- Gundulf1
- Gusztáv Emich1
- H. Bayle1
- H. Charles Barnston1