Former Owner
- Paul Sabatier1
- Peter Le Neve1
- Petrus Hofstede1
- Petrus Jensenius1
- Petrus Ysermans1
- Philadelphia Rare Books & Manuscripts Company1
- Philip C. Duschnes1
- Philip Hofer1
- Philip Hurd1
- Philip Robinson1
- Philippe Hurault de Cheverny1
- Philippe de Béthune1
- Pierre Gélis-Didot1
- Pierre Pithou1
- Pierre de La Vacherie1
- Pietro1
- Pietro Antonio Crevenna1
- Pietro Bembo1
- Pietro Giometti1
- Pius VI1