Former Owner
- Albert Figdor1
- Albert M. Patrick1
- Albert Parker, 3rd Earl of Morley1
- Alexander Beresford Hope1
- Alfred Seymour1
- Alfred Tredway White1
- Alice Millard1
- Alphonse Labitte1
- Alpirsbach Abbey1
- Andreas Wunder1
- André Le Mercier1
- Annie L. Wiggins1
- Antoine Joseph Rérolle1
- Antoine de Buz1
- Arenburg1
- Arnold Jansen op de Haar1
- Arnold Mettler1
- Arthur Vershbow1
- Athelstan Riley1
- Augustus Pugin1