Former Owner
- Giuseppe Franchini1
- Giusto Venier1
- Gladbach Abbey1
- Gladys Freeman1
- Gotha Research Library1
- Great St. Martin Church1
- Grigorij Sergeevič Stroganov1
- Groenendael Priory1
- Grolier Club1
- Grosvenor, Richard1
- Guilberto Broulin1
- Guilelmus Laing1
- Guillemette Bezard1
- Gundulf1
- H. Bayle1
- H. Charles Barnston1
- Habert du Berry d'Artois family1
- Hagop Kevorkian1
- Hagop Kevorkian Fund1
- Hamilton Cole1