Former Owner
- George M. Millard1
- George Shuckburgh-Evelyn1
- George Templeton Strong1
- George Venables-Vernon, 5th Baron Vernon1
- Gerard de Vismé1
- Giacomo Soranzo1
- Giampietro Campana1
- Gilberte le Gualès de Mézaubran1
- Giovan Pietro Arrivabene1
- Giovanni Battista Niccolini1
- Giovanni Dominico Fabbris1
- Giovanni Saibanti1
- Giovanni Sforza1
- Giusto Venier1
- Gladys Freeman1
- Gonthaut-Saint-Blanchard family1
- Gordon A. Block Junior1
- Groenendael Priory1
- Gudrun Wandel1
- Guilielmus van Hamme1