 In September, Konrad von Jungingen told the prince-electors of the Holy Roman Empire that the union of Poland, Lithuania and Hungary under Władysław-Jogaila's rule would endanger Christendom.However, most of Sigismund's opponents, who were especially numerous in Croatia, supported the claim of Ladislaus of Naples, the last male member of the Capetian House of Anjou.On 8 September, the most influential Hungarian lords declared that they would not support any change in government while Sigismund was far from Hungary fighting against the Ottoman Turks.