Author
- Robert Beale1
- Robert Cooke1
- Robert Fabyan1
- Rodrigo de Rueda1
- Roman Catholic Archdiocese of Siena1
- Roman Rota1
- Royal Audiencia of Lima1
- Rui de Pina1
- Sebastian Schindler1
- Senate of the Republic of Venice1
- Shaykh Tabarsi1
- Shukr Allāh ibn Aḥmad Rūmī1
- Sibt al-Maridini1
- Sixtus V1
- Spanish Council of State1
- Stefano d'Andrea1
- Taj al-Din al-Subki1
- Tartaleoni family1
- Thomas Blount1
- Thomas Howard, 4th Duke of Norfolk1