Qin Mugong, surnamed Ying, Zhao, name Ren Hao, the ninth monarch of Qin during the Spring and Autumn Period (reigned 659 BC-621 BC), one of the "Spring and Autumn Five Tyrants", and the young son of Qin Degong.
After Qin Mugong succeeded to the throne, he recruited wise men and boldly appointed non-native talents, which was the first in the Qin State to appoint guest secretaries. With the assistance of Baili Xi, Jian Shu, You Yu, Meng Mingshi, Xi Qishu, Bai Yibing and other virtuous ministers, the national strength of the Qin State became stronger and stronger.
In the thirty-fourth year of Qin Mugong (626 BC), when Qin Mugong attacked Zheng in the Jin Kingdom, he adopted the strategy of Jian Shu and sent Meng Mingshi, the son of Baili Xi, Xi Qishu, and Bai Yibing, the sons of Jian Shu, to lead the Qin army to attack Zheng State. However, on the way back to the division, the Qin army was ambushed by the Jin army at Kunshan Mountain, and the Qin army was completely annihilated, and the three commanders were also captured by the Jin army. Later, under the negotiation of Wen Ying, the daughter of Qin Mugong, the three generals were released back to Qin.
In the thirty-third year of Qin Mugong (627 BC), the Qin army defeated the Jin army in the Battle of Pengya, and the battle of Xuekuo Mountain was humiliated.
In the thirty-sixth year of Qin Mugong (624 BC), Qin Mugong personally led an army to attack the Jin state, crossed the river and burned boats to show his determination, and then the Qin army defeated the Jin army in the Battle of Wangguan, captured Wangguan and Yandi, and forced the Jin army to retreat, known as the "Battle of Wangguan" in history.
In the thirty-seventh year of the reign of Qin Mugong (623 BC), the Qin army defeated the Jin army in the Battle of the Qin army and captured the Jin Huigong alive. After that, Qin Mugong and Jin Xianggong met in Yiyi.
After Qin Mugong dominated Xirong, King Xiang of Zhou sent Zhao Gongguo with a golden drum to congratulate Qin Mugong.
In the thirty-ninth year of Qin Mugong (621 BC), Qin Mugong died, nicknamed Mu, and was buried in Yongcheng (now southeast of Fengxiang County, Shaanxi Province).