Former Owner
- Notre-Dame monastery (Ambert, France)1
- Novalesa Abbey1
- Ochsenhausen Abbey1
- Oliver R. Barrett1
- Omaha Public Library1
- Orlandus de Fatiis1
- Owen D. Young1
- Paland, Irmengarde von1
- Pangracius Chrewczer1
- Paolino Gianfilippi1
- Paolo Gallo1
- Pascal Gay1
- Paul Gottschalk1
- Paul Sabatier1
- Paul de Berthou1
- Paulus de Graecus1
- Pedro Ferris1
- Pedro García de Montoya1
- Peter Le Neve1
- Peterborough Central Library1