Former Owner
- Ada E. Moorhead Thomas1
- Adam de Campigny1
- Adelbert Brownlow-Cust, 3rd Earl Brownlow1
- Adelrich Benziger1
- Adolphe Lefrancq1
- Adolphe Morlot1
- Adrian Van Sinderen1
- Adrienne Minassian1
- Agnes Browne1
- Agnes Mongan1
- Albert Figdor1
- Albert M. Patrick1
- Albert M. Todd1
- Albert Parker, 3rd Earl of Morley1
- Albert VII of Mansfeld1
- Alex Scott Carter1
- Alexander Bannatyne Stewart1
- Alexander Beresford Hope1
- Alexander Boswell, Lord Auchinleck1
- Alexander E. Vida1