Former Owner
- Nicolas Antoine Labbey de Billy1
- Omaha Public Library1
- Paolino Gianfilippi1
- Parroco di Taviano, Luigi Bruno, active 20th century1
- Paul Sabatier1
- Philip Hurd1
- Philippe Hurault de Cheverny1
- Pierre Pithou1
- Pietro Canal1
- Richard Priestley1
- Robert Hoe III1
- Royal Library of Belgium1
- Rudolf Busch1
- Saluti, Tomasso, active 20th century1
- San Barnaba Church1
- Santa Caterina1
- Sewell Thomas1
- Sotheby's1
- Tammaro De Marinis1
- That Guy with the Books1