Former Owner
- Albert M. Patrick1
- Alexandre de Keller1
- Alfred Seymour1
- Algernon Percy, 10th Earl of Northumberland1
- Amorbach Abbey1
- Andreas Adelbert Popp1
- Andreas Gross Seiffensieder1
- André Rooryck1
- Angelo Fasolo1
- Anthelme-Michel-Laurent de Migieu, marquis de Savigny1
- Anthony Askew1
- Antoine Joseph Rérolle1
- Antoine de Court1
- Antoni Jerzy Apponyi1
- Antonio Assemani1
- Antonio Dominico Restis1
- Antonio Laserna1
- Antonio Saverio Gentili1
- Antonio Ubaldini1
- Antonio de Bonius1