Nowadays, as long as the world talks about Guan Yu, they will respectfully call Guan Erye, and he has also become synonymous with Loyalty, then everyone knows that Guan Yu was once named the Marquis of Hanshouting by Cao Cao, which is the highest title in his life, speaking of this, there is a question, why does Guan Yu not accept Liu Bei's canonization, but often thinks of himself as cao Cao's Marquis of Hanting? There are actually three reasons.

Guan Yu was originally a murderer in Shanxi, because of the crime to flee everywhere, he met Liu Bei and Guan Yu in the market one day, the three did not fight and did not know each other, so Taoyuan married, became a brother with a different surname who did not talk about anything, since then Guan Yu and Zhang Fei have always been only Liu Bei Ma' head, following him to conquer the world, and there are three reasons for Guan Yu's acceptance of Cao Cao's canonization.
First, Guan Yu deserved it. The title of Marquis of Hanshouting was played by Guan Yu by strength, since Liu Bei established the Shu Han regime, he divided Guan Yu into a category of imperial relatives, Guan Yu was not concerned about this, although Liu Bei was called the queen in Hanzhong, Guan Yu had flooded the Seven Armies, and made extraordinary achievements for Shu Han, but despite this, Guan Yu still understood that the Marquis of Hanshouting was the embodiment of his own strength.
Second, this title has a high gold content. At that time, Cao Cao threatened Tianzi to order the princes, and the Marquis of Hanshouting was personally ordered by Cao Cao, this title was also approved by Emperor Xian of Han, Guan Yu was divided for killing Yan Liang after the siege of Baima, at this time Guan Yu was already famous, and the title of Marquis of Hanshouting was officially informed to the world, and later Liu Bei's title was only suitable for use in the Shu kingdom, and in other places, this title was not recognized.
Third, Guan Yu's name of loyalty. Guan Yu has always been loyal to Shu Han, he was loyal to his brother all his life, but more loyal to the Han Room, Guan Yu was familiar with the Spring and Autumn Period, and understood that liu Bei established the Shu Han where the great righteousness was, which was contrary to Guan Yu's ambitions, and he wanted to restore the glory of the Han Room in his heart, so he always insisted on the title of Marquis of Hanshouting, so Guan Yu did not care about Liu Bei's canonization at all.
Guan Yu has always insisted on assuming that he is the Marquis of Hanshouting, indicating that he is also eager to restore the Han Chamber, as a commander of the party, which is particularly valuable, but it is a pity that Guan Yu later lost the battle with Xu Huang, and Lu Fang and Fu Shiren turned their backs on him, and eventually lost ground, defeated and killed, if Guan Yu did not die young, Zhuge Liang would not have died because Shu Han had no available talent, did everything himself, and finally died of illness.
Therefore, Guan Yu's role in Shu Han was very great, if he held Jingzhou, Shu Han would not lose Zhang Fei and Huang Zhong, two tiger generals, and Liu Bei might also be able to dominate the world.