Former Owner
- Andreas Justus Cennis1
- André Le Mercier1
- Angelo Fasolo1
- Anthony Askew1
- Antoine de Buz1
- Antoine-Augustin Renouard1
- Antoni Jerzy Apponyi1
- Antonio Dominico Restis1
- Antonio di Matteo di Giovanni Foresi da Bibbiena1
- Antonius Mensing1
- Apostolo Zeno1
- Arenburg1
- Arthur Hood, 1st Baron Hood of Avalon1
- Arthur Lee Loeb1
- Arthur Liddell, 5th Baron Ravensworth1
- Arthur de l'Isle du Dréneuc1
- Ashton Rollins Sanborn1
- Baldassarre Boncompagni1
- Barbarigo family1
- Barbe de Laon1