Иоанн Скилица
The city disappears from the sources thereafter, and re-emerges only in the 11th century, in the account of the Bulgarian wars of Emperor Basil II by the chronicler John Skylitzes, with the Slavic name "Vodena" ( in Greek). The Bulgarian historian Vasil Zlatarski hypothesized that it was Vodena, and not Vidin on the Danube, that was a base of the Cometopuli in their revolt against Byzantium.