Born in 757 BC, Zheng Zhuanggong was the third monarch of the State of Zheng during the Zhou Dynasty and a statesman in the early Spring and Autumn Period.
Inuyasha invaded Western Zhou and killed King You of Zhou, and the following year, King Ping of Zhou moved the capital to Luoyi, known in history as Eastern Zhou. Zheng Zhuanggong's father, King You of Zhou, was killed by the combined forces of Shen Hou, and in 743 BC, Duke Zhengzhuang succeeded to the throne.
Quelled his brother's rebellion and eliminated the country's internal worries. After that, it actively developed externally and gradually became stronger.
King Ping gave some of the power of Duke Zhuang to another secretary, Duke Yu. However, King Ping was reluctant to admit it in front of Duke Zhuang, so Zhou and Zheng made an oath that King Ping's son Hu would go to Zheng as a hostage, and Duke Zhuang's son would also go to Zhou Duluoyi as a hostage.
In 720 BC, King Ping of Zhou died, and his grandson succeeded to the throne, king Huan of Zhou. King Huan of Zhou hated Zheng Zhuanggong's domineering style, and as soon as he succeeded to the throne, he wanted to divide Zheng Zhuanggong's power.
King Huan of Zhou wanted to leave all political affairs in the hands of Duke Yu. Zheng Zhuanggong was very angry, and when he was in front of King Huan of Zhou, he adopted an impolite attitude towards him. Soon, Zhou Tianzi sent people to seize the land of the four cities of Zheng Guo as his own, and gave the land of the twelve cities that he could not control to Zheng Guo, depriving Zheng Zhuang of his position as a secretary of state. After that, Duke Zhuang never went out to see Zhou Tianzi again.
In order to maintain the authority of the Zhou royal family, King Huan of Zhou led the armies of Chen, Cai, Yu, and Wei against Zheng in 707 BC. Duke Zhuang deliberately let the King of Zhou move first, and then led Zheng's army into battle. At that time, Chen Guo's army was unstable, Cai and Wei's forces were weak, and Zheng Jun concentrated on attacking the armies of Chen, Cai, and Wei, and the three kingdoms retreated. The Zhou army fell into confusion and then retreated. When King Huan of Zhou retreated, General Zheng Guo shot him in the shoulder, and King Heng almost fell off his horse and escaped from the encirclement under the protection of the Zhou army. General Zheng Guo was going to catch up with and capture the King of Zhou alive. Zhuang Gongfei said with pity: "It is not right to fight with the Son of Heaven. We were forced to defend ourselves. Hopefully we haven't suffered any losses. How can you bully The Son of Heaven? In the evening, Zheng Zhuanggong pretended to respect the King of Zhou and sent his ministers to pay tribute to the wounded King of Zhou.
Zheng Zhuanggong shot out Zhou Tianzi's dignity with an arrow. Zhou Tianzi nominally retained the status of co-lord of the world, the spiritual leader of the unification of the princely states. In fact, the Zhou royal family has completely declined. The princely states no longer looked at Zhou Tianzi, and history entered a period of hegemony among the princes.