At the time of the fifth generation of the subsequent Emperor, the Emperor Shaykh Jahan, bowed his knees to the monarch of Chedan, and called himself the child Emperor. After the death of the Emperor Shaykh Jahan, the heir of the Emperor Shaykh Jahan, called the Emperor of Chedan the Son of Unbelievers, and expressed his freedom from the subordinate relationship with Chedan.

In the spring of 944 (after the beginning of the year), Yellowstone was struck by local "country soldiers" in Hebei from the south of Huizhou and the south of the Middle East.

In 945 the battle between Chedan and Zhang was fought in Yangtze (near Hebei, Hanoi), the advanced army, despite the obstructions of the captain Durovoy, bravely attacked, defeated the Chedan soldiers, and the Yerudith Chairman escaped.

In the autumn of 946, the Chedan soldiers again raised to the south. The humiliation of Chedan led Zhao to extend his life, attempting to use the forces of Chedan to call the Imperial Central, and therefore to help the Southern prisoners of the Chedan army.

On January 10, 947 (the 16th of December of the three-year-old), Yerudith opened the siege and was destroyed after 11 years.