Ostoja of Bosnia was one of the most active kings that left trace in Visoko. He assumed his role as a king in 1398, but after 4 years he was forced to flee Bosnia. Nobility with Tvrtko II held a meeting in Mile and they decided to overthrow Ostoja because of his pro-Hungarian stance. Ostoja has lost support of almost all nobility at the time. Stanak that was held on June 5, 1404 was difficult and very long. Hungarians decided to send an army into Bosnia, and Podvisoki will be looted on Mart 4, 1410. They even captured some Ragusians merchants stationed in Podvisoki, for which Republic of Ragusa protested to Sigismund, King of Hungary In 1412 Vuk Kotromanić, nephew of king Ostoja killed and stole silver from one Ragusian merchant Jakša Bunić. Ragusians demanded that Vuk be punished for his crime, but there is no evidence that he was ever prosecuted. However, king Ostoja remained in power, and Tvrtko II went into hiding.