Former Owner
- Abbey of Morimondo1
- Acton Griscom1
- Albert C. Baugh1
- Alexander Boswell, Lord Auchinleck1
- Alfred John Horwood1
- Algernon Percy, 10th Earl of Northumberland1
- Andreas Weiss1
- Antonio Laserna1
- Antonio Ubaldini1
- Battista di Ser Cicco di Fermo1
- Bernardus de Pedio1
- Carl Alphons Geigy-Hagenbach1
- Carlo Archinto1
- Carlos José Gutiérrez de los Ríos y Rohan Chabot Fernán-Núñez1
- Carthusian monastery, Herne1
- Charles Butler1
- Charles Sessler1
- Charles Seymour, 6th Duke of Somerset1
- Damiano Muoni1
- David McRoberts1