Former Owner
- Ramsau Monastery1
- Raul A. Villagran1
- Reuschenberg, Margreta von1
- Richard Heber2
- Richard Linenthal1
- Riddagshausen Abbey1
- Riederer, Georg Wilhelm1
- Robert Garrett3
- Robert Ranshaw1
- Rudolph Feilding, 8th Earl of Denbigh1
- Rudolphus Rasser Donatus1
- Rush Hawkins1
- Sam Fogg Rare Books & Manuscripts2
- Samuel H. Putnam1
- Sandra Meisel1
- Sankt Maria Magdalena1
- Sayn Abbey1
- Sebastianus Severus1
- Sigurd Wandel6
- Sir Henry Savile1