Zvenyslava Rogvolodovna was a twelfth-century princess from Polatsak and a notable monastic writer. The daughter of Prince Boris, she was sent to Byzantium following her father's death in 1128. Upon returning to her homeland, she entered the Spas Monastery in Polatsak, taking the name Euphrosyne. Under the guidance of Saint Euphrosyne of Polatsak, she became a prominent figure in the monastic community, contributing significantly to the preservation of religious literature and education.