Former Owner
- Philip Milburn1
- Philippe Desportes1
- Pietro Antonio Crevenna1
- Pius XI1
- Prieuré Saint-Louis de Poissy1
- Purchased ca. 2000 from a book dealer.1
- Quinton Edward Gurney1
- Renzo Rizzi libri antichi1
- Richard Graves1
- Richard Legh1
- Richard Maria Domville1
- Richard Wroe1
- Robert Davies1
- Robert Lenkiewicz1
- Robert Wyer1
- Robert de Hangest1
- Royaumont Abbey1
- Rudolph B. Gottfried1
- San Giorgio Monastery1
- San Pietro Apostolo1