Former Owner
- Notre-Dame de Macourt monastery1
- Otto Orren Fisher1
- Paul Gottschalk1
- Paul Gruel1
- Peter Le Neve1
- Petrus Hofstede1
- Philadelphia Rare Books & Manuscripts Company1
- Philip C. Duschnes1
- Philip C. Duschnes Rare Books & First Editions1
- Philip van Alfen1
- Poor Clares1
- Prince Augustus Frederick, Duke of Sussex1
- Quinton Edward Gurney1
- Québriac family1
- R. Stora and Company1
- Ramsau Monastery1
- Renzo Rizzi libri antichi1
- Robert Forrer1
- Robert Hoe III1
- Robert Lyle1