Former Owner
- Preston A. Perry1
- Prieuré Saint-Louis de Poissy1
- Prince Augustus Frederick, Duke of Sussex2
- Prince Sadruddin Aga Khan2
- RR Donnelley1
- Rabbinical Seminary Vienna1
- Raffaello de’ Medici1
- Reiss & Son1
- Rev. T. Barnes1
- Richard Farmer1
- Richard Griffith1
- Richard Heber1
- Richard Hooker1
- Richard de Fournival1
- Robert Brodhead Honeyman1
- Robert Davies1
- Robert Elyot1
- Robert Garrett3
- Robert Hoe III5
- Robert de Hangest4