Author
- Parthasarathi Mishra4
- Philip II of Spain4
- Pius II4
- Pseudo-Cicero4
- Pseudo-Phalaris4
- Ptolemy4
- Qadi Ayyad4
- Rabanus Maurus4
- Republic of Venice4
- Resmî Ali Baba4
- Richard Rolle4
- Robert Grosseteste4
- Shaukat Bukhari4
- Shaykh Saduq4
- Tarikatçı Mustafa Efendi4
- Thomas Hoccleve4
- Thomas of Cantimpré4
- Tryaṃbaka Paṇḍita4
- Tunakabuni4
- Varāhamihira4