Former Owner
- Albert VII of Mansfeld1
- Alexander Hamilton, 10th Duke of Hamilton1
- Alfonso Cassuto1
- Alfred Chester Beatty1
- Alfred Cock1
- Alfred E. Hamill1
- Alfred Seymour1
- Alfredo Chavero1
- Algernon Percy, 10th Earl of Northumberland1
- Alphonse Labitte1
- Amorbach Abbey1
- Andrea Tessier1
- Andreas Adelbert Popp1
- Andreas Gross Seiffensieder1
- André Le Mercier1
- Anne Claude Philippe, Comte de Caylus1
- Antoine-Augustin Renouard1
- Antonio Laserna1
- Antonio Pallavicini Gentili1
- Antonio Saverio Gentili1