The third cause was the famous dispute about the Kingship. As Matthias was growing old and feeble, it was time to choose his successor; and Matthias, therefore, summoned a Diet, and informed the Estates, to their great surprise, that all they had to do now was to accept as King his adopted son, Ferdinand Archduke of Styria. At first the Diet was thunderstruck. They had met to choose their own King. They intended to choose a Protestant, and now they were commanded to choose this Ferdinand, the most zealous Catholic in Europe. And yet, for some mysterious reason, the Diet actually yielded. They surrendered their elective rights; they accepted Ferdinand as King, and thus, at the most critical and dangerous point in the whole history of the country, they allowed a Catholic devotee to become the ruler of a Protestant people. For that fatal mistake they had soon to pay in full. Some say they were frightened by threats; some say that the Diet was summoned in a hurry, and that only a few attended. The truth is, they were completely outwitted. At this point the Protestant nobles of Bohemia showed that fatal lack of prompt and united action which was soon to fill the whole land with all the horrors of war. In vain Budowa raised a vehement protest. He found but few to support him. If the Protestants desired peace and good order in Bohemia, they ought to have insisted upon their rights and elected a Protestant King; and now, in Ferdinand, they had accepted a man who was pledged to fight for the Church of Rome with every breath of his body. He was a man of fervent piety. He was a pupil of the Jesuits. He regarded himself as the divinely appointed champion of the Catholic faith. He had already stamped out the Protestants in Styria. He had a strong will and a clear conception of what he regarded as his duty. He would rather, he declared, beg his bread from door to door, with his family clinging affectionately around him, than allow a single Protestant in his dominions. "I would rather," he said, "rule over a wilderness than over heretics." But what about his oath to observe the Letter of Majesty? Should he take the oath or not? If he took it he would be untrue to his conscience; if he refused he could never be crowned King of Bohemia. He consulted his friends the Jesuits. They soon eased his conscience. It was wicked, they said, of Rudolph II. to sign such a monstrous document; but it was not wicked for the new King to take the oath to keep it. And, therefore, Ferdinand took the oath, and was crowned King of Bohemia. "We shall now see," said a lady at the ceremony, "whether the Protestants are to rule the Catholics or the Catholics the Protestants."