Former Owner
- Archibald Cary Coolidge1
- Archibald Primrose, 5th Earl of Rosebery1
- Arenburg1
- B.S. Cron1
- Basilica of Sant'Ambrogio1
- Bertram Dobell1
- Biblioteca Bottigella1
- Birgittinessenklooster Mariënwater1
- C. Bruscoli1
- C.J. Spence1
- Carlo Morbio1
- Charles Chardin1
- Charles Edward Harris-St. John1
- Charles Fontaine1
- Charles G. Napier1
- Charles Joseph Harford1
- Charles Porterfield Krauth1
- Charles Sessler1
- Charles William Dyson Perrins1
- Charles Étienne Brasseur de Bourbourg1