King Zhaoxiang of Qin
In 306 BC, the young King Zhaoxiang ascended to the throne, with his mother Queen Dowager Xuan serving as regent. Knowing Qin could not focus on eradicating Yiqu when it had the hostile eastern states to deal with, and her son's rule was still shaky due to numerous rival princes keen to capture the throne, Queen Dowager Xuan decided to use an approach of pretended conciliation. She invited the king of Yiqu to live long-term in the Ganquan Palace, and consummated a seductive liaison that produced two sons with him. This completely removed the Yiqu King's hostility towards Qin, as the beguiled king had lost all cautiousness around the Queen Dowager. At the same time, King Zhaoxiang was aggressively acting to weaken rival warring states in the east and south, and Queen Dowager Xuan was secretly planning with her son the eventual annihilation of Yiqu.
Duke Xiang of Qin
In 771 BC King You of Zhou deposed Crown Prince Yijiu and made Bofu, the son of his favorite concubine Bao Si, the new crown prince. Yijiu was the son of Queen Shen who was the daughter of Marquis of Shen. Marquis of Shen rebelled at the news and made an alliance with the Quanrong tribe to attack the Zhou capital Haojing, killing King You at Mount Li. Marquis of Shen and other feudal rulers then installed Prince Yijiu on the Zhou throne as King Ping of Zhou. As Haojing was now ruined and still under the threat of the Quanrong, it was decided that the Zhou capital would be moved east to Luoyi, and Duke Xiang sent the Qin army to escort King Ping to Luoyi and established him at the new capital. This event marked the start of the Eastern Zhou Dynasty.