During the Spring and Autumn and Warring States period, King Zhao of Chu had a wife whose name was Jiang. This Mrs. Jiang was the daughter of the marquis king of Qi, and the marriage to the king of Chu was also a marriage between the two countries. One day, King Zhao of Chu went out with Mrs. Jiang. Because of the inconvenience of the lady's road trip, and some tired, King Zhao of Chu let the lady to take a rest, he in the riverside specially selected a beautiful scenery of the platform, placed Mrs. Jiang in this.