Former Owner
- Neustift Abbey1
- Nicolai Briganti1
- Nicolas Fowle1
- Nicolaus de Monte Murro1
- Orlandus de Fatiis1
- Oswald Carl Friedrich von Seilern und Aspang1
- Otto Jahn1
- Otto Orren Fisher1
- Pangracius Chrewczer1
- Paolo Vimercati Sozzi1
- Philadelphia Museum of Art1
- Philip Augustus Hanrott1
- Philip Kerr, 11th Marquess of Lothian1
- Piero Ginori Conti1
- Pierre Fraenkel1
- Pietro Bembo1
- Pietro Civaleri1
- Pietro Giuseppe Ignati Mattei Cattochii1
- Pius VI1
- Preston A. Perry1