imprisonment were relaxed. In early 1403, Rupert made diplomatic overtures to Sigismund, attempting to get him to forgo his attempt to secure the imperial crown. But Sigismund invaded Bohemia with Hungarian forces, looting and imposing heavy taxes, and persecuting the supporters of Wenceslaus. He also plundered the royal treasury to pay for his military campaigns against the supporters of Rupert and of Jobst of Moravia. An armistice between Sigismund and Jobst was agreed to be in effect from 14 April until 20 May. This gave Sigismund's opponents time to prepare, and after the end of the armistice, Sigismund could make no further gains and retreated from Bohemia, reaching Bratislava on 24 July. On 1 October 1403, Pope Boniface IX finally acknowledged the deposition of Wenceslaus and the election of Rupert as King of the Romans. As a coronation of Wenceslaus was now no longer a possibility, and while he was nominally still prisoner in Vienna, he was no longer under strict guard, and he managed to escape on 11 November. He crossed the Danube and was escorted by John II of Liechtenstein via Mikulov back to Bohemia, meeting his supporters in Kutná Hora before moving on Prague, which he entered on Christmas. Among the charges raised by Rupert as the basis for his predecessor's deposition was the Papal Schism. King Rupert called the Council of Pisa in 1409, attended by defectors from both papal parties. They elected Antipope Alexander V, worsening the situation because he was not acknowledged by his two rivals, and from 1409 to 1417 there were three popes. After the death of Rupert in 1410, his succession at first proved difficult, as both Wenceslaus' cousin Jobst of Moravia and Wenceslaus' brother Sigismund of Hungary were elected King of the Romans. Wenceslaus himself had never recognized his deposition and hence still claimed the kingship. Jobst died in 1411, and Wenceslaus agreed to give up the crown, so long as he could keep Bohemia. This settled the issue, and after 1411 Sigismund reigned as king and later also became Holy Roman Emperor. The bishops and secular leaders, tired of the Great Schism, supported Sigismund when he called the Council of Constance in 1414. The goal of the council was to reform the church in head and members. In 1417, the council deposed all three popes and elected a new one. By resolving the schism, Sigismund restored the honour of