Gigen
Gigen lies near the meeting of the Iskar and Danube, among the remains of the Roman colony of Oescus. In the fourth century a bridge associated with Constantine joined Oescus to Sucidava across the Danube. The site later served as a Bulgarian fortress. A tenth-century inscription found in the village church preserves a monk's condemnation of heresy during the reign of Tsar Peter I. The Ottomans took Gigen in 1393, and their records mention it again in 1430.