First, success or failure is not empty
The death of Guan Yu in the Three Kingdoms period was undoubtedly an event of great influence. Because it was too extreme, he had also threatened Huaxia before, frightening Cao Cao to move the capital, but within a few days he was suddenly defeated and killed. This kind of ups and downs is not only a stimulus, it is simply a "stimulus".
Coupled with Guan Yu's own influence and the promotion of "Romance of the Three Kingdoms", Guan Yu's death has become a major hot topic in history.
For example, some people start from Guan Yu's personality and conclude that this is "character determines life". Who made Guan Yu so arrogant? Therefore, it has caused "careless loss of Jingzhou" and the lesson is painful, so brothers, a low-key life is complete.
Some people also analyzed from a purely military point of view, believing that Guan Yu died of internal and external troubles, just like the Chu king Xiang Yu was facing "embattled songs".

Mi Fang, the uncle of the country who was the most unlikely to rebel against the water, surrendered, and the closest "nephew" Liu Feng could not be saved when he saw death.
External Cao Cao, Sun Quan, these two great heroes, in order to deal with Guan Yu, actually threw all the aces in their hands in one go, what Xu Huang, Zhang Liao, Yu Ban, Lü Meng, Lu Xun, etc., Guan Yu only led a Jingzhou partial army, but he had to carry so many people and horses and famous generals, and endured open guns and dark arrows, so Guan Yu did not die, that is strange.
In short, these are two mainstream views. The difference is only that the first "personality theory" is more from the perspective of demeaning Guan Yu. And the second kind of death theory, how to see how to praise Guan Yu has the meaning of praise.
Although the "Romance of the Three Kingdoms" repeatedly emphasizes that "right and wrong turn to the void", the result is that instead of becoming empty, the hot spots of the Three Kingdoms have lasted for thousands of years, and Guan Yu's death is still debated endlessly. So that suddenly there was a point of view that shocked everyone's eyes: Guan Yu was killed by Zhuge Liang!
Second, Guan Yu was killed by Zhuge Liang?
The person who threw out this view was a famous historian in China: Mr. Zhang Taiyan. He wrote a book called the Book of Lou. He is known as "a man of general knowledge in the sea, and who may sympathize with the Zhang clan, but also difficult to read". This means that even scholars from all walks of life have expressed their positions, which is too difficult to read.
Supposedly, giving such a conclusion seems to doom this book to fire! However, the truth is the opposite, because there is an article in the book called "Zheng Ge", which mainly comments on Zhuge Liang, throws out "Wang Bomb", gives three points of evidence, and argues: Guan Yu was killed by Zhuge Liang by the hand of Sun Quan, and he also analyzed the Tao. Let's look at its point of view first.
First: Start with Zhuge Liang's ability. This means that Zhuge Liang was resourceful and strategic, a visionary and sharp-eyed cattle man. It stands to reason that he had a deep understanding of the crisis at that time. But why did he neither propose nor see Zhuge Liang carry out any rescue when Guan Yu's army was defeated?
Therefore, Zhang Taiyan's conclusion was: Zhuge Liang was jealous of Guan Yu and wanted to take this opportunity to get rid of him once and for all!
Second: start with Guan Yu. In the eyes of Mr. Taiyan, Guan Yu is innocent of merit and innocence, and if he is killed openly, he will not be able to convince the public. Therefore, killing Guan Yu by the hand of Eastern Wu is killing two birds with one stone. Zhuge Liang eliminated his opponents without showing the mountains and waters, paving the way for himself to take power.
The evidence is that guan Yu's death forced Liu Bei to kill his righteous son Liu Feng. Guan Yu and Liu Feng both belong to a category of people, with strong personalities and great influence, and they are also The closest people to Liu Bei. Therefore, Zhuge Liang took advantage of Guan Yu's death to kill Liu Feng, laying the foundation for the future control of Liu Chan.
Third: strike at the opponent and monopolize power. Analyzing from the first two points of view, Zhuge Liang wants to monopolize power, so he must strike or eliminate potential opponents. Guan Yu and Liu Feng were killed in the early stage, and Li Yan in the later stage.
Li Yan was also Liu Bei's vassal, on a par with Zhuge Liang, but was demoted to a commoner by Zhuge Liang.
Killing Guan Yu was borrowed from Sun Quan's hand, killing Liu Feng was borrowing Guan Yu's death, and degrading Li Yan was on the grounds of strict law and discipline! With Li Yan being reduced to a commoner, there was no one to threaten Zhuge Liang.
III. Refuting these "three reasons (viewpoints)"
Don't say it's the past, even mr. Zhang Taiyan's argument now, it's enough to explode. Because it completely subverted the image of Zhuge Liang. In particular, these three points of evidence are also said to be the Tao. But rigorous? I'm sorry, but I can't see it. There is only one feeling: it is a complete inference of guilt, first setting Zhuge Liang guilty, and then listing the charges (reasons).
First refute the first point: Guan Yu Wei Zhen Huaxia and the defeat of the soldiers were killed, and the time was very short. Guan Yu's shock to Huaxia occurred in October 219 (lunar calendar), and Guan Yu's defeat and killing was in December 219 AD. It was only two months apart.
With the communication conditions of the Three Kingdoms period, how could the news of Jingzhou be transmitted to Liu Bei and Zhuge Liang in Chengdu in time? Liu Bei and Zhuge Liang did not have reaction time at all. It is not even excluded that when Guan Yu was killed, Liu Bei and Zhuge Liang were still congratulating Guan Yu for flooding the Seventh Army.
Zhuge Liang is a man, not a god, and military intelligence fighters are always changing rapidly, how can he figure it out? Unless you think that Zhuge Liang is really a "demon" like the Romance of the Three Kingdoms, then no one has anything to say.
To refute the second point: Guan Yu is the most capable general under Liu Bei, which is recognized. But Zhuge Liang was in charge of internal affairs at that time. The military matter is that Liu Bei is in charge. That is to say, the division of power between Zhuge Liang and Guan Yu did not conflict at all.
As for killing Liu Feng, it was because Liu Feng's identity was Liu Bei's righteous son, Liu Chan's righteous brother. And Liu Feng was fierce and stubborn, and he did not care about the overall situation, so Liu Bei was able to suppress it. If after Liu Bei's death, he and Liu Chan tossed each other up, what do you let Liu Chan do? Killing, this is called cannibalism, not killing, it is difficult to convince the public - it is a thunder that can explode at any time. Liu Bei eliminated it, and the most righteous thing was right.
Finally, I refute the third point: What does Zhuge Liang want to do when he is in power? Neither is it Cao Cao's "blackmailing the princes of the Heavenly Son", nor is it Sima Zhao's way of doing so—if your emperor disobeys, I will not be wrong to kill you! Instead, it was "Kuangfu Han Room, still in the old capital", which was the goal of Shu Han.
Obviously, Mr. Zhang Taiyan's mouth was crooked, and Zhuge Liang was set as a "powerful minister". As for Li Yan, the Chronicle of the Three Kingdoms is written very clearly, Li Yan lied that the grain and grass were not good, and asked Zhuge Liang in the Northern Expedition to return to the army. But after Zhuge Liang returned, he pretended to be stupid and said: I have prepared so much grain and grass, why did you retire from the army?
This is greater than the crime of lying about military information, and it is a public restraint and planting stolen goods! Zhuge Liang did not kill him, he was worthy of Li Yan.
Fourth, God is reversed
Therefore, Mr. Zhang Taiyan believes that "Zhuge Liang killed Guan Yu", although he used three points of evidence to analyze the tao, but he could not stand up to scrutiny at all. Naturally, it will cause great controversy.
In the face of this situation, Mr. Zhang Taiyan came to a god reversal, and many years later admitted that this "Zhengge" was borrowing ancient metaphors to satirize the people at that time! And 15 years later, after revising the original source of this article, it was renamed "Si Ge". That is to say, remember Zhuge Liang! He personally overturned the thesis that "Guan Yu was killed by Zhuge Liang".
However, Guan Yu's death added "fierce material" to this, so that many people held up Mr. Zhang Taiyan's "Zhengge" and angrily rebuked Zhuge Liang, but they did not know why Mr. Zhang Taiyan wanted to write "Zhengge", and he had already originally been originally from the source and renamed "Si Ge".