- Rhetoric, Medieval1
- Rhetoric--Study and teaching1
- Rhetorica ad Herennium1
- Rithmomachia (Game)1
- Roman Civil War (Rome : 43-31 B.C.)1
- Roman law1
- Romances, Italian1
- Romances, Latin (Medieval and modern)1
- Romans--Religion1
- Rome (Italy). Maestri delle Strade1
- Rucellai, Cosimo, 1495-15191
- Santa Maria Novella (Church : Florence, Italy)1
- Satire1
- Savonarola, Girolamo, 1452-14981
- Seccrani, Marco1
- Seccrani, Parrino1
- Shipbuilding1
- Sigismund II Augustus, King of Poland, 1520-15721
- Singing--Instruction and study1
- Skepticism1