Author
- Pomponius Mela1
- Prince-Bishopric of Toul1
- Priscian1
- Pseudo-Phalaris1
- Richard II of England1
- Royal Chancellery of Granada1
- Saint Catherine Monastery1
- Sallust1
- Salomon Trismosin1
- Seigneury de Brousses1
- Senate of the Republic of Venice1
- Seneca1
- Sextus Empiricus1
- Stephanus Hugoneti1
- Sylvester II1
- Taddeo Alderotti1
- Tartaleoni family1
- Theobaldus Episcopus1
- Thomas Aquinas1
- Thomas of Cantimpré1