Author
- Petrus Riga1
- Philip II of Spain1
- Philip IV of Spain1
- Pius II1
- Plato1
- Poggio Bracciolini1
- Pope1
- Qasem-e Anvar1
- Qūsh Aṭası, ʻIṣmat Aḥmad1
- Rabanus Maurus1
- Ranulf Higden1
- Robert Cooke1
- Rocca, Antonio1
- Rodrigo Sánchez de Arévalo1
- Rolandino de' Passaggeri1
- Ruzbihan Baqli1
- Rājiḥ ibn Ismāʻīl Ḥillī1
- Sabit Alaeddin Ali1
- Sadr al-Shari'a al-Asghar1
- Sallust1