Former Owner
- Nicolaus Pol1
- Norman Winestine1
- Notre-Dame monastery (Ambert, France)1
- Novalesa Abbey1
- Noël Pinelli1
- Nur al-Din Arslan Shah I1
- Ochsenhausen Abbey1
- Omaha Public Library1
- Orlandus de Fatiis1
- Otto Schäfer1
- Otto Vollbehr1
- Otto Walter Fuhrmann1
- Paland, Irmengarde von1
- Pangracius Chrewczer1
- Paolo Gallo1
- Pascal Gay1
- Paul Gottschalk1
- Paul de Berthou1
- Pease, John William, 1820-19001
- Pedro García de Montoya1