Former Owner
- Albert Parker, 3rd Earl of Morley1
- Albert VII of Mansfeld1
- Alberto Govi1
- Albizzi1
- Aldonza de Castilla1
- Alex Scott Carter1
- Alexander Bannatyne Stewart1
- Alexander Beresford Hope1
- Alexander Boswell, Lord Auchinleck1
- Alexander E. Vida1
- Alexander Fuller-Acland-Hood, 1st Baron St Audries1
- Alexander Hamilton, 10th Duke of Hamilton2
- Alexander Isaac Cotheal10
- Alexander Peckover, 1st Baron Peckover1
- Alexander Smets1
- Alexander Smith Cochran2
- Alexander W. Terrell1
- Alexandre de Keller1
- Alexis Hübner1
- Alfonso Cassuto5