Dušan evidently wanted to expand his rule over the provinces that had earlier been in the hands of Serbia, such as Hum, which was annexed by the Hungarian protégé and Bosnian Ban Stephen II Kotromanić in 1326. In 1329, Ban Stephen II launched an attack on Lord Vitomir, who held Travunia and Konavle. The Bosnian army was defeated at Pribojska Banja by Dušan, when he was still "Young King". The Ban soon took over Nevesinje and the rest of Bosnia. Petar Toljenović, the Lord of "seaside Hum" and a distant relative of Dušan, sparked a rebellion against the new ruler, but he was soon captured and died in prison.