Former Owner
- Philip C. Duschnes Rare Books & First Editions1
- Philip Hofer1
- Philip van Alfen1
- Pierre Pithou1
- Poor Clares1
- Quinton Edward Gurney1
- Québriac family1
- Ramsau Monastery1
- Raoul Chandon de Briailles1
- Renzo Rizzi libri antichi1
- Richard Priestley1
- Robert Forrer1
- Robert Lyle1
- Robert de Hangest1
- Rudolf Busch1
- Rush Hawkins1
- Saint-Amand Abbey1
- Saluti, Tomasso, active 20th century1
- Samuel Petit1
- San Barnaba Church1