Former Owner
- August Merz1
- B.S. Cron1
- Baldassarre Boncompagni1
- Biblioteca Bottigella1
- Bill Ward1
- Birgittinessenklooster Mariënwater1
- C. Bruscoli1
- Camilla Doria Pallavicini1
- Catherine de' Medici1
- Charles Coffin Little1
- Charles Edward Harris-St. John1
- Charles Joseph Harford1
- Charles Louis Adelaïde Henri Matheron Curnieu1
- Charles Seymour, 6th Duke of Somerset1
- Charles-Adrien Picard1
- Charles-Gilbert Morel de Vindé1
- Chartreuse de Val-Saint-Esprit1
- Christian Friedrich August Günther1
- Christopher Tschudin1
- Clement VII1