Former Owner
- A.G.T1
- Abbaye de Saint-Alyre1
- Abbaye de Saint-Martin de Tournai1
- Abbazia dell'Acquafredda1
- Abbey of Santa Giustina1
- Adam Clarke1
- Adam de Campigny1
- Adolph Sutro1
- Adolphe Morlot1
- Adrianus David Schinkel1
- Alan G. Thomas1
- Alberto Govi1
- Alexander Hamilton, 10th Duke of Hamilton1
- Alexander Peckover, 1st Baron Peckover1
- Alexis Hübner1
- Alison Johnstone1
- Alphonse Labitte1
- Anchin Abbey1
- Andrea Tessier1
- Andrea della Valle1