c. Provadiya. Municipality Provadiya. State Varna.
Ovech, as it has been called by the Bulgarians, is situated in the Kaleto plateau, to the east of the town of Provadia. Ovech has been called by the Byzantines Provat, and by the Turks - Tash Hisar. During the different periods the castle has been inhabited by Thracians, Romans, Byzantines, Jews. It has been conquered by knights, Turks, Russian armies. During the Second Bulgarian Realm Ovech is an important administrative, economic and church center.