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.
Jiandi
Jiandi (), also with variants 簡易/简易 and 簡逷/简逷, is an important figure in Chinese history and in Chinese mythology. She was the second wife of Emperor Ku, who was a descendent of the Yellow Emperor. Jiandi was the mother of Qi, the predynastic founder of the Shang dynasty (note that this is a different Qi than the Qi Ji born to Di Ku's first wife Jiang Yuan). Her pregnancy miraculously occurred following her swallowing or holding in her bosom the egg of a bird. Jiandi was said to be of the Yousong clan. Jiandi is mentioned in various sources, including the poems "Eulogy of Shang", in the "Shijing", and the "Heavenly Questions" in the "Chuci".