Order was to a certain extent re-established in Prague during the short rule of Prince Sigismund Korybut of Lithuania, a nephew of the King of Poland, whom the Utraquist nobles wished to substitute to Sigismund of Hungary as their ruler. Korybut arrived at Prague in May 1422, and remained there to the end of that year. He unsuccessfully attempted the siege of the Karlstyn that was still held by the Royal troops. This failure, as well as the influence of the King of Poland, induced Korybut to leave Prague, though, as events proved, only temporarily. Shortly afterwards dissensions, ending in civil war, arose between the Praguers and the Taborites. The internal dissensions were not, however, of long duration, as the news of a new 'crusade' reunited all Bohemia, and the Treaty of Konopist (1423) for a time restored internal tranquillity. Unfortunately the truce lasted but for a short time. The new crusade proved a yet greater failure than those that had preceded it. The Germans and other crusaders speedily recrossed the frontier without even having encountered the Hussites on the field of battle, and we find the Praguers and Taborites again at war in 1424. Through the intervention of Korybut, who had meanwhile returned to Prague, another conference took place on the so-called Spitalské Pole (hospital field). Mainly through the eloquence of a young preacher at the Tyn Church, Rokycan, afterwards famous as Utraquist Archbishop of Prague, an agreement was obtained. It is a curious proof of the mutual distrust that prevailed that an agreement had been previously made, according to which the party that violated the truce should be fined a considerable sum, and that a large heap of stones should be placed in the Spitalské Pole for the purpose of stoning immediately all disturbers of the peace. After the meetings at Konopist and on the Spitalské Pole, many others took place, in all of which the minutiæ of theology were discussed with that intense interest in religious controversy that was characteristic of the Bohemians of that time; of such meetings we may mention that held in the Hradcany in 1424, and the somewhat later one at the Carolinum. Religious dissensions also caused the downfall of Korybut in 1427. The clergy of Prague were then divided into two parties: the more moderate one led by Magister Pribram, which Korybut favoured, and the advanced one, which was more in sympathy with the Taborites, and which had as leaders Rokycan, Jacobellus, and Peter Payne, who, in consequence of his English origin, was known as 'Magister Englis.' He played a considerable part in the contest, as a contemporary song tells us that-- 'The devil sent us Englis; He walks stealthily through Prague, Spreading doctrines from England That are not wholesome for the Bohemians.'[22]