Former Owner
- Adam Samuel Thebesius1
- Adam de Campigny1
- Admont Abbey2
- Admont Abbey Library4
- Adolphe Morlot1
- Adriana R. Salem1
- Adrianus David Schinkel1
- Adrienne Minassian1
- Adán Inquaci1
- Adʹham Nūrī Waṣfī1
- Akbar1
- Alan G. Thomas1
- Alan H. Kempner1
- Albert C. Baugh9
- Albert Parker, 3rd Earl of Morley1
- Alexander Hamilton, 10th Duke of Hamilton1
- Alexander Isaac Cotheal6
- Alexandre de Keller1
- Alexis Hübner1
- Alfonso Cassuto4