Former Owner
- Niccolò Albergati1
- Nicholas B. Scheetz1
- Nicholas Bacon1
- Nicholas Chevalier1
- Nicolas Fowle1
- Nicolas Rauch1
- Nicolas Yemeniz1
- Notre-Dame de Macourt monastery1
- Notre-Dame monastery (Ambert, France)1
- Omaha Public Library1
- Orlandus de Fatiis1
- Oswald Carl Friedrich von Seilern und Aspang1
- Otto Haas1
- Owen D. Young1
- P. Pigeot1
- Pangracius Chrewczer1
- Paolo Gallo1
- Paolo Vimercati Sozzi1
- Parish Church of Waldhausen im Strudengau1
- Parroco di Taviano, Luigi Bruno, active 20th century1