Former Owner
- Pîrîzâde, Sayyid ʻAbd Allāh, Shaykh al-Islām1
- Qusṭanṭīn ibn Lūdūlf1
- Raoul Léonor Lignerolles1
- Reading Abbey1
- Ricardo, Conde de Benahavis Heredia1
- Richard Greene1
- Richard James Horatio Gottheil1
- Richard Mery of Hatfield1
- Richard Wroe1
- Riddagshausen Abbey1
- Robert Elyot1
- Robert Stayner Holford1
- Robert Wyer1
- Ross Winans1
- Rugby School1
- Rushton Mather Dorman1
- Saeed Nafisi1
- Samuel Putnam Avery1
- Samuel William Ogg, Major-General1
- Santa Maria di Rosate1