The brilliant successes so rapidly achieved by Stephen during the first years of his reign secured the triumph of Christianity and of the royal authority in the western half of the country only. The adherents of the ancient faith and liberty still remained in a majority in the eastern, more-thinly peopled regions beyond the Theiss and in Transylvania. Gyula, the duke of Transylvania, and the uncle of Stephen, was not slow in protesting against the new kingdom and the innovations coupled with it. The rebellion failed, as we have already seen. Gyula and his whole family were made captives by the victors, and neither he nor his posterity ever regained their lost power. Transylvania was more closely united with the mother country, and from that time, during a period extending over more than five centuries, was ruled by _vayvodes_ appointed by the kings. Soon after Stephen opposed victoriously the Petchenegs, the allies of the defeated Gyula, who were settled beyond the Transylvanian mountains in the country known at present as Roumania, and having also defeated Akhtum, who, trusting in the protection of the Greek emperor, was disposed to act the master in the region enclosed by the Danube, Theiss, and Maros, there was no one in the whole land who—openly, at least—dared to refuse homage to the crown pressing the temples of Stephen and to the double cross. During the twenty years succeeding the events just narrated, history is entirely silent as to any great martial enterprise of Stephen. It is true that hostilities were frequent along the northern and western borders against the Poles and Czechs, but they were never of a character to endanger the territorial integrity of the country. During those years of comparative peace Stephen firmly established the Hungarian Christian kingdom. The Christian Church was the corner-stone of all social and political order in the days of Stephen. The Church pointed out the principal objects of human endeavor, marked out the ways leading to the accomplishment of those aims, drew the bounds of the liberty of action, and prescribed to mankind its duties. It educated, instructed, and disciplined the people in the name and in the place of the state, and in doing this the Church acted for the benefit of the state. Hence it was that Stephen, in organizing the Hungarian Christian Church and placing it on a firmer basis, consulted quite as much the interests of his royal power as the promptings of his apostolic zeal. Where the Christian faith gained ground, there the respect for royalty also took root, and the first care of royalty, when its authority had become powerful, was to preserve the authority of the Church.