Author
- Richard Bolter1
- Richard Maidstone1
- Richard Rolle1
- Richard Treby1
- Richard de Geveldale1
- Robert Gazeley1
- Rocca, Antonio1
- Rodrigo Sánchez de Arévalo1
- Roger Waltham1
- Rolandino de' Passaggeri1
- Roman Catholic Archdiocese of Reims1
- Seneca1
- Simon de Lenis1
- Spain1
- Stefano Fieschi1
- Suetonius1
- Thomas Malyus1
- Urban V1
- Usuard1
- Vegetius1