Amid these national disasters the long reign of Wanleh closed in the year 1620. That unhappy monarch lived long enough to see the establishment on his northern borders of the power which was to destroy his dynasty. The very last act of his reign was, whether by accident or good judgment, the most calculated to prevent the Manchus overrunning the State, and that was the selection of a capable general in the person of Hiung Tingbi. With the death of Wanleh the decadence of Ming power became clearly marked, and the only question that remained was whether it could be arrested before it resulted in absolute ruin. CHAPTER IX THE MANCHU CONQUEST OF CHINA Tingbi, with the wrecks of the Chinese armies, succeeded in doing more for the defense of his country than had been accomplished by any of his predecessors with undiminished resources. He built a chain of forts, he raised the garrison of Leaoutung to 180,000 men, and he spared no effort to place Leaouyang, the capital of that province, in a position to stand a protracted siege. If his counsels had been followed to the end, he might have succeeded in permanently arresting the flood of Manchu conquest; but at the very moment when his plans promised to give assured success, he fell into disgrace at the capital, and his career was summarily ended by the executioner. The greatest compliment to his ability was that Noorhachu remained quiescent as long as he was on the frontier, but as soon as he was removed he at once resumed his aggression on Chinese soil. Meanwhile, Wanleh had been succeeded on the Chinese throne by his son, Chu Changlo, who took the name of Kwangtsong. He was an amiable and well- meaning prince, whose reign was unquestionably cut short by foul means. There is little doubt that he was poisoned by the mother of his half- brother, from a wish to secure the throne for her son; but if so she never gained the object that inspired her crime, for the princes of the family met in secret conclave, and selected Kwangtsong's son a youth of sixteen, as his successor. The choice did not prove fortunate, as this prince became known as Tienki the Unhappy, whose reign witnessed the culmination of Ming misfortunes. One of his first acts was the removal of Tingbi from his command, and this error of judgment, aggravated by the ingratitude it implied to a faithful servant, fitly marked the commencement of a reign of incompetence and misfortune.