Former Owner
- Arnold Jansen op de Haar1
- Arnold Mettler1
- Artemesia Piccolomini1
- Arthur Annesley, 1st Earl of Anglesey1
- Arthur Griffith1
- Arthur Haddaway1
- Arthur Lee Loeb1
- Arthur Liddell, 5th Baron Ravensworth1
- Arthur M. Ellis1
- Arthur M. Elliz1
- Arthur Thomas Bannister1
- Ashton Rollins Sanborn1
- Athelstan Riley1
- Audry Wilkens1
- B. Goussil1
- B.C. Barker-Benfield1
- B.L. Riese1
- B.S. Cron1
- Baldasarre Boncompagni1
- Barbara Hackenmayrin1