- Regula (Benedict, Saint, Abbot of Monte Cassino)2
- Requesens, Antonio de'2
- Requesens, Bernardo de'2
- Rhetoric--Study and teaching2
- Rhetorica ad Herennium2
- Roman law2
- Romania--Transylvania2
- Rossi, Girolamo de'2
- San Marziano (Monastery : Tortona, Italy)2
- San Miniato, Cosimo di2
- San Miniato, Giovanni di2
- San Miniato, Jacopo di2
- San Miniato, Michele di2
- San Miniato, Simone di2
- San Miniato, Tommaso di2
- Santa Trinità di Spineto (Monastery : Sarteano, Italy)2
- Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D.2
- Service books (Music)--Catholic Church2
- Social conditions2
- Spain--Barcelona2