Author
- Raymond of Penyafort1
- Richard Bolter1
- Richard Burdet1
- Richard Nykke1
- Robert de Saint-Martin1
- Rodrigo Sánchez de Arévalo1
- Roman Catholic Archdiocese of Siena1
- Roman Catholic Diocese of Osma-Soria1
- Roman Catholic Diocese of Zaragoza1
- Roman Curia1
- Rupert, Count Palatine of Simmern1
- Sacro Regio Consiglio1
- Santa Maria in Portico a Fontegiusta1
- Sebastian of Naples1
- Siena1
- Signoria of Florence1
- Sixtus IV1
- Smoyel1
- Sulpicius Severus1
- Taftāzānī, Masʻūd ibn ʻUmar, 1322-1389?1