Author
- Robert Cooke1
- Rodrigo de Rueda1
- Roman Catholic Archdiocese of Siena1
- Salmūn ibn ʻAlī Kinānī1
- Sangalletti family1
- Santa Maria degli Alberighi1
- Sebastian Schindler1
- Shaykh Tabarsi1
- Shaykh Tusi1
- Shukr Allāh ibn Aḥmad Rūmī1
- Sibṭ ibn al-ʻAjamī1
- Simone Gondi1
- Sixtus V1
- Stefano d'Andrea1
- Surkhāb1
- Taftazani1
- Taj al-Din al-Subki1
- Timoteo Bottoni1
- Tommaso Ridolfi1
- Torelli family1