Author
- Robert de Sorbon1
- Robert of Gloucester1
- Robine Bordinelle1
- Rocca, Antonio1
- Roger Bigod, 2nd Earl of Norfolk1
- Roman Catholic Diocese of Regensburg1
- Royal Chancellery of Granada1
- Rudulphus Bollartus1
- Rutilius Taurus Aemilianus Palladius1
- Salomon Trismosin1
- Salvator Oliva1
- Santa Maria in Portico a Fontegiusta1
- Sarrazius de Bethencourt1
- Scipione Bargagli1
- Sebastião Lopes1
- Seigneury de Brousses1
- Senate of the Republic of Venice1
- Serapion the Younger1
- Sextus Empiricus1
- Sextus the Pythagorean1