Qin Huiwen's daughter, Wang Yi, has an unknown name. 334 years ago, she married Prince Yan Wengong. The following year, Yan Wengong died. The prince succeeded to the throne as king, and the daughter of Qin was the queen. According to the Warring States policy, Su Qin took the queen as Princess Qin, and persuaded Zhao and Qi not to attack Yan.
Meng Huo, the legendary king of Qin, married a disabled prince over 50 for Qin Yan's marriage. Meng Huo made a scene when he learned about it. The king of Qin also avoided Meng Ying. Seeing that the marriage was settled, Meng Yunlai was heartbroken and took it to see his wife, but she told her with her own story. Meng Ying's heart was dying, and he asked for it, saying that he had figured it out and was willing to get married for the sake of Qin. Meng Ying left the crowd and came to Yan.
Big princess was sensible and capable since she was a child, so she was able to marry a foreign country and become the queen mother of Yan, that is, Yan Zhaowang's mother. She is called "Queen Yan Yi" in the history books. Meng Ying achieved his father and son with forbearance and sacrifice, but eventually he died young because of his love and depression with Su Qin.