晋献公
In 665 BC, the twelfth year of his reign, Li Ji gave birth to Xiqi. Since Duke Xian of Jin favored Li Ji, he had a desire to dethrone Shensheng, the eldest son of Duke Xian of Jin, from his position as crown prince to make Prince Xiqi the crown prince instead, so he sent Prince Shensheng to defend Quwo, modern Quwo County in Shanxi. Duke Xian of Jin also sent Prince Chong'er to defend the city of Pu and Prince Yiwu to Erqu (二屈), modern Ji County in Shanxi.