Former Owner
- Algerina Peckover1
- Algernon Percy, 10th Earl of Northumberland1
- Alice M. Taylor1
- Alice Millard2
- Alison Johnstone1
- Allan Marquand1
- Allen Rowland1
- Alonso Mendez de Parada1
- Alpha Loretta Owens1
- Alphonse Labitte7
- Alphonse Pinart1
- Alpirsbach Abbey1
- Ambroise Firmin Didot11
- Amelia Anderson Lundell1
- Amelia Daubeney1
- American Art Association1
- Ampleforth Abbey2
- Anchin Abbey1
- Anderson Galleries6
- Andrea Matteo Acquaviva1