Former Owner
- Gascoigne baronets1
- Gasser, Rudolf von, Freiherr, -1911?1
- George Becher Blomfield1
- George Horace Johnstone1
- George Shuckburgh-Evelyn1
- George Venables-Vernon, 5th Baron Vernon1
- Gerard de Vismé1
- Gertrude Lueneburg Carrier1
- Giacomo Eugenio De Levis1
- Giacomo Soranzo1
- Giampietro Campana1
- Gilberte le Gualès de Mézaubran1
- Gilhofer & Ranschburg. Lucerne, Suisse1
- Giovanni Alessandro Brambilla1
- Giovanni Battista Niccolini1
- Giuseppe Bruschetti1
- Godefroy Honore1
- Grenville Kane1
- Groenendael Priory1
- Grosvenor, Richard1