Former Owner
- Philippe de Béthune1
- Phillip J. Pirages Fine Books & Manuscripts1
- Pierre Fraenkel1
- Pierre de La Vacherie1
- Pietro1
- Pietro Odescalchi1
- Prieuré Saint-Louis de Poissy1
- Prince Augustus Frederick, Duke of Sussex1
- Rafael Gomes1
- Ralph Thoresby1
- Raphael de Mediolano1
- René Antoine Thoué1
- René Henry1
- Richard Bennett1
- Richard Blount1
- Richard Halter1
- Richard Mery of Hatfield1
- Richard Nykke1
- Richard Rich1
- Richard Sackville1