After Rupert's death two cousins, Jobst, margrave of Moravia, and Sigismund, king of Hungary, were in the autumn of 1410 both chosen to fill the vacant throne by opposing parties; and the position was further complicated by the fact that the deposed king, Wenceslaus, was still alive. Jobst, however, died in January 1411, and in the succeeding July Sigismund, having come to terms with Wenceslaus, was again elected king and was generally recognized. The commanding questions of this reign were ecclesiastical. It was the age of the great schism, three popes claiming the allegiance of Christendom, and of the councils of Constance and of Basel; in all ranks of the Church there was an urgent cry for reform. Unfortunately the council of Constance, which met mainly through the efforts of Sigismund in 1414, marred its labours by the judicial murders of John Huss and of Jerome of Prague. This act greatly incensed the Bohemians, who broke into revolt in 1419, and a new and fiercer outburst occurred in 1420 when Sigismund, who had succeeded his brother Wenceslaus as king of Bohemia in the preceding August, announced his intention of crushing the Hussites. Led by their famous general, John Zizka, the Bohemians won several battles and spread havoc and terror through the neighbouring German lands. During the progress of this revolt Germany was so divided and her king was so poor that it was impossible to collect an army of sufficient strength to crush the malcontents. At the diet of Nuremberg in 1422 and at that of Frankfort in 1427 Sigismund endeavoured to raise men and money by means of contributions from the estates, but the plan failed owing to mutual jealousies and especially to the resistance of the cities. He secured some help from Frederick of Brandenburg, from Albert of Austria, afterwards the German king Albert II., and from Frederick of Meissen, to whom he granted the electoral duchy of Saxe-Wittenberg; but it was only when the Hussites were split into two factions, and when Zizka was dead, that Germany was in any way relieved from a crushing and intolerable burden. Brandenburg and the Hohenzollerns. The continual poverty which hindered the successful prosecution of the war against the Hussites, and which at times placed Sigismund in the undignified position of having to force himself as an unwelcome guest upon princes and cities, had, however, one good result. In 1415 he granted, or rather sold, the mark of Brandenburg to his friend Frederick of Hohenzollern, burgrave of Nuremberg, this land thus passing into the hands of the family under whom it was destined to develop into the kingdom of Prussia. During this reign the princes, especially the electors, continued their endeavours to gain a greater share in the government of Germany, and to some extent they succeeded. Sigismund, on his part, tried to enforce peace upon the country by forming leagues of the cities, but to no purpose; in fact all his plans for reform came to nothing.