The Rožmberk castle was founded in the first half of the 13th century either by Vítek the Younger of Prčice, or by his son Vok of Prčice, a member of the powerful Vítkovci family ("Witikonides" in Latin; "Witigonen" in German) who later styled himself Vok of Rožmberk ("Vok de Rosenberch") after this castle. The original castle, known as Horní hrad (Upper Castle), consisted of a high tower known as the Jakobínka, in diameter, with corbelled ramparts and a palace. The structure was completely surrounded by castle walls with a moat. Within a short time, a tributary town grew in the barbican. The castle became the administrative and economic centre of the family's lands, a part of which Vok gave to the newly established Cistercian monastery in Vyšší Brod. In 1302, when the cadet Krumlov branch of the Vítkovci died out, Vok's offspring inherited Český Krumlov and they settled there permanently. After 1330 Jindřich of Rožmberk built the Dolní hrad (Lower Castle), which was defended by ramparts placed above the moat, which was cut through the neck of the rock.