- Reproduction1
- Rhetoric, Ancient1
- Ripley, George, -1490?1
- Roderick, King of the Visigoths, -711?1
- Roman Civil War (Rome : 43-31 B.C.)1
- Roman de la rose (Guillaume, de Lorris)1
- Roman law--Interpretation and construction1
- Romero family1
- Rosary1
- Rueda family1
- Rueda, Baltasar de, active 1553-15691
- Rueda, Bernardino de, active 1553-15691
- Rueda, Luis de, active 1553-15691
- Rueda, Rodrigo de, active 1553-15691
- Rufina, Saint, -approximately 2871
- Rules1
- Ruralia commoda (Crescenzi, Pietro de')1
- Sacred music1
- Saint-Victor (Abbey : Paris, France)1
- Salvation1