Author
- Robine Bordinelle1
- Roman Catholic Archdiocese of Mainz1
- Roman Catholic Archdiocese of Siena1
- Roman Catholic Diocese of Osma-Soria1
- Roman Catholic Diocese of Regensburg1
- Roman Catholic Diocese of Zaragoza1
- Roman Curia1
- Rupert, Count Palatine of Simmern1
- Rutgerus Hartman1
- Rutilius Taurus Aemilianus Palladius1
- Sacro Regio Consiglio1
- Safi al-Din al-Urmawi1
- Sallust1
- Santa Maria Nuova Hospital1
- Santa Maria in Portico a Fontegiusta1
- Saʻīd Najm al-Dīn ʻAjamī1
- Seneca1
- Shams al-Dīn al-Samarqandī1
- Shams-ud-Din Kermani1
- Sharaf ad-Din Ali Yazdi1