- Requesens, Salvatore Francesco de'1
- Requesens, Salvatore de'1
- Requesens, Vincenzo de'1
- Rhetoric, Medieval1
- Rhetoric--Study and teaching1
- Rhetorica ad Herennium1
- Rosselmini, Giovanni1
- Rosselmini, Gregorio Tommaso1
- Rural conditions1
- Sacraments1
- Sacraments--Catholic Church1
- Saints1
- San Miniato, Francesca di1
- San Miniato, Francesco di1
- Santa Maria degli Angeli (Convent : Siena, Italy)1
- Scolario, Bartolomeo di1
- Sententiarum libri IV (Peter Lombard, Bishop of Paris)1
- Sermons1
- Silk industry1
- Social aspects1