In 1323, war broke out between Dečanski and Vladislav. In autumn, Vladislav still held Rudnik, but by the end of 1323, the market of Rudnik was held by officials of Dečanski, and Vladislav seems to have fled further north. Some of Vladislav's supporters from Rudnik, led by Ragusan merchant Menčet, took refuge in the nearby Ostrovica fortress, where they resisted Dečanski's troops. Dečanski sent envoys to Dubrovnik (Ragusa), to protest the support of Vladislav. Dubrovnik rejected Dečanski's complaint, claiming Ostrovica was held by Serbs. Dečanski was not satisfied, and in 1324 he rounded up all the Ragusan merchants he could find, confiscated their property, and held them captive. By year's end, Rudnik was restored to Dečanski, who released the merchants and returned their property. Vladislav was defeated in battle in late 1324, and fled to Hungary, that was holding Belgrade since 1319. Tensions between Dubrovnik and Serbia continued: in August 1325 Vojvoda Vojin plundered Dubrovnik, resulting in a brief trade ban. On 25 March 1326 Dečanski reaffirmed privileges previously granted to Ragusa by Milutin. Tensions began again, however, when Bosnia and Dubrovnik took actions against the Branivojevići.