There were many men engaged in reform in the Catholic Church when Luther arose, including Erasmus and Thomas More and a couple of future popes. What made Luther dangerous, and what caused him to be condemned by the German diet, was he preached doctrines like those of Hus, which had led to civil war in Bohemia. In the Middle ages, civil unrest and new religious doctrines went together, as could be seen in the career of Zwingli. Luther, unlike most zealots was a political conservative, which was shone in his support of the suppression of the Peasants’ revolt by the princes. But his reforms became a cause behind which some princes resisted the new Emperor and Rome. The young Karl, unlike his predecessors, had a personal inheritance that gave him the power to mold Germany into a single state, as the French king had done in the Frankish lands. Religious division, however, denied him the ability to control the Church. The demand on his interests elsewhere prevented him from focusing on Germany until after the death of Luther, won adamantly opposed any reconciliation with Rome, and that carried the day because of his great prestige in Germany. But Charles failed and by 1555 he was forced to come to terms with the Princes and to allow them to decide which faith should dominate in his realm.