Qin Mugong
He reigned for 39 years from 659 BC to 621 BC
In his later years, Duke Xian of Jin favored the beautiful women captured from the Rong clan, deposed Chang Liyou, forced the death of prince Shen Sheng, forced away heavy ears and entanglements, triggered civil unrest in Jin, and the Western Qin state began to stir
Qin's ancestor Qin Xianggong sent the King of Zhou Ping meritorious service, so Zhou sealed the land of Xirong to the Qin state, and Qin gradually became stronger in the struggle with Rong Di, and its culture and strength were slightly inferior to those of the Jin state
As a result, Qin Mugong continued to occupy the land to the west, and to the east tried to enter the Central Plains and create hegemony, and the Jin state became a huge barrier for the Qin state to advance eastward
In the year 659 BC of Qin Mu, he appointed Baili Xi and Uncle Jian as his courtiers and made great efforts to govern
Duke Mu of Qin always wanted to take advantage of the State of Jin, so he first married Mu Ji, the daughter of Duke Xian of Jin
After the Duke Hui of Jin returned to China to succeed to the throne after the Qin army sent them back to china, he immediately tore up Qin Mugong's promise to return the eight cities, and also took advantage of the famine in the Qin state to attack Qin on a large scale
Duke Mu of Qin first defeated Duke Hui of Jin, forcing Jin to cede land, and then letting the prince of Duke Hui of Jin enter Qin as a hostage
Jin Huigong died
In the twenty-third year of the reign of Duke Mu of Qin (637 BC), he helped Zi Yuan return to China to succeed to the throne as Duke Huai of Jin
In the twenty-fourth year of the reign of Duke Mu of Qin (636 BC), he married his daughter Wen Ying to her and helped Duke Wen of Jin return to the throne and realize the good of Qin and Jin
In 628 BC, Duke Wen of Jin died, and Qin Mugong decided to go east despite the opposition of the people
In the thirty-third year of Qin Mugong (627 BC), after the fiasco of the "Battle of Kun" and the "Battle of Pengya", the road to the east was not feasible
In 625 BC, Duke Mu of Qin personally attacked the State of Jin, and although he won, the eastern fortress Taolin was always controlled by Jin and could not be used, so Duke Mu of Qin turned to the west to develop
In the thirty-seventh year of the reign of Duke Mu of Qin (623 BC), Duke Mu of Qin developed westward, appointing Yu, who was familiar with the situation of Rong Di, as a strategist, to open up thousands of miles of land and dominate Xi Rong
In the thirty-ninth year of The Duke of Qin (621 BC), Duke Mu of Qin died