- Racially mixed people--Legal status, laws, etc.1
- Ramiro II, King of Leon, -9511
- Registers (Lists)1
- Relations1
- Religious life1
- Rendón y Sarmiento family1
- Requesens, Antonio de'1
- Requesens, Berengario de'1
- Requesens, Bernardo de'1
- Requesens, Giuseppe de'1
- Revolutions1
- Romances, Spanish1
- Rome (Empire)1
- Sales (Islamic law)1
- Sancho Garcés I, King of Navarre, -9251
- Sancho II, King of Castile and Leon, 1037 or 1038-10721
- Sarmiento, Pero. Sentencia-Estatuto1
- Satellites--Phases1
- Satire1
- Satires1