Author
- Peter Cantor3
- Pseudo Bernard of Clairvaux3
- Pseudo-Cicero3
- Pseudo-Phalaris3
- Qutb al-Din al-Shirazi3
- Rabanus Maurus3
- Raghudeva Nyāyālaṅkāra3
- Robert Cooke3
- Roman Catholic Archdiocese of Siena3
- Roman Catholic Diocese of Arezzo3
- Rāmatīrthayati3
- Sadīd al-Dīn al-Kashgharī3
- Sanai3
- Saúl Levi Morteira3
- Shahidi Ibrahim Dede3
- Shaunaka3
- Shaykh Tabarsi3
- Sidrac3
- Siraj ud-Din Muhammad ibn Abd ur-Rashid Sajawandi3
- Sirāj al-Dīn Abū Ḥafṣ ʻUmar Ibn al-Wardī3