Former Owner
- Poor Clares1
- Prediger (Schwäbisch Gmünd)1
- Prince Augustus Frederick, Duke of Sussex1
- Prince Sadruddin Aga Khan6
- Prosper Blanchemain1
- Prospero Caffarelli1
- Pîrîzâde, Sayyid ʻAbd Allāh, Shaykh al-Islām1
- Quinton Edward Gurney1
- Qusṭanṭīn ibn Lūdūlf1
- R. H. Fenn1
- R. J. Bunck1
- Rabbinical Seminary Vienna2
- Rafael Gomes1
- Ramsau Monastery1
- Ramón de Mesonero Romanos1
- Raoul Chandon de Briailles2
- Raphael Nathan Nata Rabinowitz1
- Raymond Berriot2
- Raymond Oliver1
- Reading Abbey6