Former Owner
- Omaha Public Library1
- Paolo Giovio1
- Paul Gottschalk1
- Paul Sabatier1
- Pazzi family1
- Peter Eaton1
- Peter Ludwig1
- Phoebe Hearst1
- Pietro Millini1
- Rafael Gomes1
- Ricardo Enrico de Wilde1
- Richard Heber1
- Richard Henry Wilde1
- Richard Priestley1
- Robert Hoe III1
- Robert Oppenheim1
- Robert Wheeler Willson1
- San Giorgio Monastery1
- Santa Maria di Rosate1
- Sewell Thomas1