Although Qi, the number one overlord in the Spring and Autumn Period, suffered a defeat in Changshao, this did not affect Duke Huan of Qi's subsequent overlord status. More than ten years later, the Yan State in the north (the capital is in today's Beijing) sent an envoy to ask f

Spring and Autumn The first overlord Qi State Although he suffered a defeat in Changshao, this did not affect Qi Huangong 's subsequent dominance. More than ten years later, the Yan State in the north (the capital of which is now Beijing) sent envoys to ask for reinforcements, saying that the Yan State was invaded by a nearby tribe, Shanxu, and was defeated. Duke Huan of Qi decided to lead an army to save Yan.

In 663 BC, the Qi army arrived in the Yan state. Shanrong had already robbed a group of people and treasures and fled back.

The armies of Qi and Yan united and chased north. Unexpectedly, they were led into a mysterious valley by the enemy. The lost valley is like the sea, with no edges or edges, and it is impossible to find the original road.

or Guan Zhong came up with an idea. He said to Duke Huan of Qi: "Maybe the horses can know the road. It's better to find some old local horses and let them lead the way. Maybe we can get out of this place."

Duke Huan of Qi asked someone to pick some old horses and let them lead the way. As expected, these old horses led the men and horses out of the maze.

After Qi Huangong helped Yan State defeat the Shanrong, Xing State was also invaded by another tribe, the Di people. Duke Huan of Qi took his men and horses to drive away the Di people and helped Xing rebuild the city wall.

Then, the Di people invaded the Wei State again, and Qi Huangong helped the Wei State rebuild the capital on the south bank of the Yellow River .

Because of these few things, Duke Huan of Qi's prestige increased. Only the Chu State in the south not only dissatisfied with the Qi State, but also opposed the Qi State and wanted to compete with the Qi State.

The Chu State is located in southern China and has never had contact with the princes of the Central Plains. At that time, the princes of the Central Plains regarded Chu as a "barbarian". However, the Chu people reclaimed the land in the south, gradually conquered some nearby tribes, and slowly became a great country. Later, he simply called himself the King of Chu and ignored the emperor of the Zhou Dynasty.

In 656 BC, Qi Huan Gong met with the armies of the seven kingdoms of Song, Lu, Chen, Wei, Zheng, Cao, and Xu to jointly attack Chu. King Chu Cheng learned the news and gathered his troops to prepare for resistance. He sent an envoy to see Qi Huangong and said: "Our king asked me to ask, Qi is in the north and Chu is in the south. The two countries have no contact with each other. It is really said that they are unrelated. Why do your soldiers and horses come here?

Guan Zhong asked: "Although our two countries are far apart, they are both sealed by the emperor of Zhou . When Taigong of the state of Qi was granted the title, he accepted an order: If anyone disobeys the emperor, the state of Qi has the right to punish him. Your Chu State originally paid tribute to Baomao to the emperor every year, why don't you pay tribute now? The envoy said: "It is our fault that we did not pay tribute to Baomao. We will definitely pay tribute in the future." "

After the envoy left, the Qi State and the allied forces of the princes broke out and moved forward until they reached Zhaoling (today's Yancheng County, Henan Province).

King Chu Cheng sent Qu Wan to inquire again. Duke Huan of Qi In order to show his military power, he asked Qu Wan to get on the carriage and see the various troops. Qu Wan saw that the troops were in good order and the troops and horses were strong. Duke Huan of Qi said to Qu Wan arrogantly, "Look, who can resist such powerful troops and horses?" Qu Wan smiled faintly and said, "Only when a prince assists the emperor, speaks morality, and helps the weak will people admire you." If we rely solely on force, then although our national strength is not strong, we can use the square city as the city wall and the Han River as the trench. Even if you bring more troops, you may not be able to get in. "

Duke Huan of Qi was very tough after listening to Qu's words, and he probably would not be able to defeat Chu easily. Moreover, since Chu had admitted its mistake and promised to pay tribute to Baomao, it was considered a face. In this way, the eight princes of the Central Plains and Chu made an alliance in Zhaoling and returned home.

Later, there was a dispute between the Zhou royal family, and Duke Huan of Qi helped the prince Ji Zheng consolidated its position. After the prince ascended the throne, he became King Xiang of Zhou Xiang. In order to repay Duke Huan of Qi, King Xiang of Zhou sent an envoy to deliver the meat sacrificed to the Imperial Ancestral Temple by to Duke Huan of Qi, which was regarded as a generous gift. Duke Huan of Qi took this opportunity to meet with the princes at Kuiqiu (now east of Lankao, Henan) in the Song Dynasty to entertain the emperor's envoys.And a covenant was made, the main content of which is: to repair water conservancy and prevent floods, neighboring countries are not allowed to be used as puddles; neighboring countries should not be prohibited from buying food when there is a famine; all the princes in the alliance must treat each other in a friendly manner after signing the covenant. This was the last time Duke Huan of Qi met with the princes.

There were many large gatherings like this, which were called "Nine Convergences of Princes" in history. In 645 BC, Guan Zhong died of illness. Two years later, Duke Huan of Qi also died. When Duke Huan of Qi died, his five sons fought for the throne. Civil strife broke out in the state of Qi, and son Zhao fled to the state of Song. Qi's dominance was over.