UNDER HUNGARIAN SUPREMACY 167 independent of his successor, and with Hungarian help also of the Banus. His territory extended from the Servian Morava by Senice and Gacko to Cattaro and Ragusa, and included the coast between those two towns. He was the bitterest enemy of the Ragusans, and never ceased from molesting them. He is described in their chronicles and documents as a “ homo perfidus,” who “ tamquam infidelis male servat fidem.” 1 On his death in 1363 he was succeeded by his nephew Nicholas Altomanovic, who fixed his headquarters at the important commercial town of Rudnik. Stephen Tvrtko, Banus of Bosnia, profited by the break-up of Servia to consolidate his own possessions. He had come to the throne in 1353, and sided with Hungary in the war against Venice and the Serbs. Apparently some of his Magnates were inclined to rebellion and encouraged in their disloyalty by the Tsar Dusan, who thus hoped to annex the whole Banate; in this he might have succeeded had he not been cut off by death while on the march to Constantinople (Dec. 20, 1355). But as soon as the power of Servia was broken, Louis of Hungary changed his policy towards Bosnia, and obliged Tvrtko to agree to very onerous conditions. His possession of the Banate was recognised, but he had to give up his rights over Hlum to Elizabeth, Louis’s wife.2 At the same time he was reduced to the position of a vassal of Hungary, and various feudal lords on the frontier were encouraged to shake off their allegiance to him. A general rising of the Bosnian barons ensued, 1 Gelcich, La Zedda, p. 13 ; Jirecek, Handelsstrassen, p. 36 sqq. 2 These were allowed to lapse in favour of Vojslav Voinovid.