Former Owner
- George Brudenell, 3rd Earl of Cardigan1
- George D. Smith1
- George Dunn1
- George G. Napier1
- George Spencer, 2nd Earl Spencer1
- George Spencer-Churchill, 5th Duke of Marlborough1
- Georges d'Amboise1
- Giacomo Soranzo1
- Giannalisa Feltrinelli1
- Gilbert Talbot, 7th Earl of Shrewsbury1
- Gilhofer & Ranschburg. Lucerne, Suisse1
- Giovanni Angelo Altemps1
- Giovanni Baldovinetti1
- Giovanni Battista Giovio1
- Giovanni Battista Rota1
- Giovanni Perissinotti1
- Giovanni d'Andrea di Nanni Todeschini Piccolomini1
- Giovanni de Marco1
- Girard Dupeireux1
- Giuliano Attilio Piovano1