Bosnia to obedience, and to advise him to sow dissension among the Bosnian magnates, who were always ready to rebel.[343] The embassy departed for Spalato, and thence, at Hrvoje’s advice, proceeded to Hungary, but there they found that, Ostoja having shown himself willing to make peace, Sigismund had concluded a treaty with him already. By its terms Ostoja recognised Hungarian supremacy over Bosnia, and agreed to renew all the privileges of the Ragusans, and restore all the territory taken save the Primorije or coast-land. This did not satisfy the Republic, and Hrvoje was still more annoyed as it upset all his ambitious schemes. So he concluded an alliance with Ragusa against Ostoja, with the object of deposing him and placing Paul Radissić on the Bosnian throne. Hrvoje was to lead an army of Dalmatians and Bosnian malcontents up the Narenta valley, while Ragusa was to cut off Ostoja’s supplies and intrigue against him at the Hungarian court. Sigismund, however, supported Ostoja, and when the latter was besieged in his castle of Bobovac by Hrvoje he sent a force to his assistance under the Banus of Mačva[344] (Sigismund’s lieutenant in northern Bosnia), and gained back all his territory for him. But he did not forget his faithful Ragusans, and not only induced Ostoja to renew their privileges, but requested him to restore them the coast between the Ombla and Stagno.[345] After long negotiations the Diet or “Congregation” of Bosnian magnates met at Visoki in April,[346] and Ostoja brought Ragusa’s claim before it, but no decision was arrived at. After further useless negotiations the Ragusans again allied themselves with Hrvoje and the Bosnian rebels, including this time Sandalj Hranić and Paul Radinović. A second conference of nobles was summoned, and Ostoja was deposed. Stephen Tvrtko II., son of Stephen Tvrtko I., was elected king, and Ostoja retired to Bobovac, now occupied by a Hungarian garrison. The new king owed his position to Hrvoje and Sandalj, who were the real masters of the country, and Ragusa applied to them to obtain a lasting peace with Bosnia. “For what you desire,” wrote the Rector to Sandalj, “that also the lord King Tvrtko and the Duke (Hrvoje) and all Bosnia desire too, for God has granted you the favour that this should be so.”[347] Eventually Tvrtko gave them back all the territory that had been theirs and some more lands besides. The Republic made him and his brothers, as well as Sandalj, citizens of Ragusa, and gave them palaces in the town.