Former Owner
- Raitenhaslach Cistercian Abbey1
- Ralph Thoresby1
- Ralph Verney, 1st Earl Verney1
- Rama Deva1
- Ramsau Monastery1
- Raoul Chandon de Briailles1
- Raoul Léonor Lignerolles1
- Raphael King1
- Raphael Nathan Nata Rabinowitz1
- Raphael Yitzchak Yisrael1
- Raphael de Mediolano1
- Rashīdī, Ibrāhīm1
- Rashīdī, Ibrāhīm ibn Yūsuf6
- Raymond Oliver1
- Raṅganātha Marāṭhe (Son of Mayūreśvara)12
- Reading Abbey1
- Reginald Cholmondeley1
- Reiss & Son1
- Renzo Rizzi libri antichi1
- René Antoine Thoué1