Title: Taĭna gibeli Borisa i Gleba
Subjects: Historiography, Christian saints, Biography, History
Places: Kievan Rus
People: Boris kni︠a︡zʹ rostovskiĭ, Saint (d. 1015), Gleb kni︠a︡zʹ muromskiĭ, Saint (ca. 984-1015)
Time periods: 862-1237