Former Owner
- Michel Ferdinand d'Albert d'Ailly1
- Middle Hill Rare Books & Manuscripts AB (Stockholm, Sweden)1
- Monastero di Santo Spirito in Verona1
- Monastery at San Gregorio al Celio1
- Moritz Dessauer1
- Nanna Corbinello1
- Nathaniel Sherman Bouton1
- Nicholai von Bodeck1
- Nicolas Antoine Labbey de Billy1
- Oliver R. Barrett1
- Paolo Gallo1
- Paolo Vimercati Sozzi1
- Parroco di Taviano, Luigi Bruno, active 20th century1
- Paul Gottschalk1
- Payne and Foss1
- Peter Christos1
- Peter Ludwig1
- Petrus Joseph Puccius1
- Petrus de Thureyo1
- Pettini Libraria di Antonio Pettini1