During the Spring and Autumn Period, after a long war for hegemony, many small vassal states were annexed by big countries. Changes have taken place in some countries, and power has gradually fallen into the hands of several doctors. These doctors used to be nobles of slave owners, but later they took feudal exploitation and became landlords. In order to expand their power, some people also win people's hearts by reducing taxes. In this way, their power is growing. The State of Jin, always known as the overlord of the Central Plains, declined at the end of the Spring and Autumn Period. The real power comes from six doctors (Han, Zhao, Wei, Zhi, Fan and BOC) and extended families such as He Luan. They each have their own territory and armed forces and attack each other. Later, the two companies (Fan and Bank of China) broke up, leaving the family, Zhao family, Han family and Wei family. The wisdom family is the most powerful of the four families.
The family doctor tried to occupy the land of the other three families, but the three families took turns to attack him.
Zhao, Han and Wei destroyed the Zhi family, not only recovered the land occupied by Zhi family, but also divided the land equally. Later, they also carved up other land left by the state of Jin.
Historical background of Chen Tian's usurpation of Qi;
Chen Wan became king in Qi. After Chen Wan's death, Chen Jicheng lost his official position. Chen Wan was born with Meng Yi, Zhuang, the son of Meng Yi, and Chen Wenzi, the son of Zhuang, was absent. Chen (Tian Wenzi) was once effective and deeply appreciated and loved by Zhuang Gong. Tian Xu did not die, nor did his son Huan Zi succeed to the throne. Tian Wu Yu first set foot in politics in the fourth or fifth year of Qi Zhuang Gong (550-449 BC). In the fourth year of Duke Zhuang of Qi, he didn't have the strength to clear the crowd, so he resolutely sent troops to attack the Wei and Jin Dynasties and won. Tai Shigong said, "Tian Huan Zi is not very powerful, and he is very popular with Zhuang Gong." Married his daughter to Tian.
From Tian's favor to Tian Qi and Tian Chang in the three generations, Lu experienced "mourning for the public" and "simplifying the public". Qi Huangong's Lu, mainly rely on the style of Gao and Guo, they are all branches of Lu. During the long development of Qi State, Gao and Guo were appointed by Qi Shangqing, which formed the situation that Lu, Gao and Guo * * * protected Jiang's surname in Qi State. After repeated struggles, Tian Chang became an official of Qi, and Tian mastered the real power of Qi. This situation lasted for about 95 years.
The division of Jin by three clans refers to the event that Jin was divided by Han, Zhao and Wei at the end of the Spring and Autumn Period in China. At the end of the Spring and Autumn Period, Han, Zhao, Wei, Zhi, Fan and Bank of China in the State of Jin dominated. In 490 BC, Zhao defeated Fan and BOC. In 458 BC, the land of Fan and Bank of China was divided up by Han, Zhao, Wei and Zhi. In the first 453 years, Han, Zhao and Wei jointly defeated Zhi's family, divided the land equally, and established two regimes of Han, Zhao and Wei San respectively. In 403 BC, King Wei Lie of Zhou established three princes and officially recognized their vassal status. Zi Tong Zhi Jian records: "In the twenty-third year of King Wei Lie of Zhou Dynasty, doctors Wei Si, Evonne and Han Qian of Jin Dynasty were governors ...". Historians regard this as the dividing point of the Eastern Zhou, the Spring and Autumn Period and the Warring States Period.
Tian Daiqi refers to the event that Tian replaced Lu surnamed Jiang as the King of Qi (formerly known as the King of Qi) in the early Warring States period. Historical Records of Qi Taigong Family and Historical Records of Tian Family tell the rise and fall of Tian Ji. During the Spring and Autumn Period, Yan Ying, a statesman of the State of Qi, predicted: "The political chess pieces of the State of Qi will return to Tian Jia. Although there is no great virtue in the field, private rights are public, virtue is for the people, and the people love it. " In 386 BC, King An of Zhou officially sealed Tian He as the marquis of Qi, and from then on Tian gained the legal status of the marquis of Qi in form. In 379 BC, Qi Kanggong died and Feng Yi entered Tian's family. From then on, Lu, surnamed Jiang, withdrew from the historical stage of ruling Qi. History calls Tian Wei.