This name is not wrong at all, to feel awkward, you can call Liu Xiu "Han Shizu", so that it is three words instead of four words.
Regarding the use of the emperor's "nickname" and "temple number", what is really considered to be a replacement is the Han Dynasty.
Before the Han Dynasty, there was a feudal dynasty of Qin, but the First Emperor himself refused to add any temple name to himself, which led to a fault in the "temple name" of the Qin Dynasty, and before the pre-Qin Dynasty, those temple numbers were not for the emperor, they were for the princes and the son of heaven, they were not counted as emperors.
Therefore, the Han Dynasty was an era that integrated "emperor" and "temple number".
Liu Xiu, the Emperor of Han Guangwu, seized the opportunity to re-establish the "Han Dynasty" of the Liu family in the last year of the new dynasty, Liu Xiu was not a concubine, not the son and grandson of the princes, and the relationship with Liu Bang was already very distant, and the Liu family, who had the same identity as Liu Xiu, had no less than hundreds of thousands of people in the whole world at that time.
However, Liu Xiu still swept away the world with a "superman" posture, and then built the Great Han, becoming a "model" for many kings in later generations.
Liu Xiu's "nickname" is "Guangwu", and this Guangwu is closely related to his exploits.
"Guang" and "Wu" are two nicknames, derived from the ancient "Tanfa".
Regarding light, the standard is as follows:
Gong Ge up and down is known as light; Neng Shao qian karma is known as light; above can be humble light; Gong Lie geng is known as light.
Regarding wu, the criterion is as follows:
Strong and straight, righteous and martial; mighty enemy de yue wu; Ke Ding disaster chaos Yue Wu; criminal people overcome Yue Wu; ... Eliminate the traitors and Jing Difficulty Yue Wu; Tuodi Kaifeng Yue Wu; Su General Tianwei Yue Wu; An Min and Zhong Yue Wu; Ke You Tianxia Yue Wu; Wisdom Does Not Kill Yue Wu; Compassion for the People to Eliminate Harm Yue Wu; Go to the Enemy Without Avoiding Yue Wu; Dewei Zhi Chang Yue Wu;
There are only four standards for the title of "light", but there are more than thirty about wu, so the "wu" is a very comprehensive name, and it is also a very difficult name, because there are enough standards to meet to be crowned with this name.
Liu Xiu belongs to the "Rong Ma Emperor", since the "Battle of Kunyang" that deposed Wang Mang, Liu Xiu's battle record is a history of horizontal pushing, defeat is more important, the world is determined, to say that Liu Xiu's martial arts achievements in the Han Dynasty, that is, second only to Liu Bang and the Han Wu Emperor Liu Che, but Liu Xiu is eligible for a "wu".
But the problem came again, "Wu" was already used by someone, that is, Emperor Wu of Han.
The title did not say that it could not be used repeatedly, but as a descendant, it was absolutely impossible to use "wu" after Liu Xiu's death, because it was called "trespassing" and was a great rebellion.
At this time, some Confucians proposed that His Majesty Liu Xiu's restoration of the Great Han Dynasty was unique in his merits, and since Emperor Wu of the Han Dynasty had suppressed the "Wu" Emperor before, he simply added a "light" to His Majesty Liu Xiu.
Liu Xiu's "light" comes from "Nengshao's former industry".
That is to say, Liu Xiu achieved the merits of restoring the ancestors and the previous dynasty, so he was also a "Wu Emperor", but because he was a descendant of Emperor Wu of Han, this "Guangfu" had a standard, that is, Emperor Wu of Han, so he had the title of "Guangwu".
Later generations of scholars with a shallow culture also questioned why Liu Xiu's nickname was "Double 谥", which was different from the kings since ancient times.
In fact, the "double rumor" is not just an example of Liu Xiu, there were many in the pre-Qin period, and there were very many of them.
For example, the Zhou Tianzi who gave the Spring and Autumn overlord Jinguo "three points" was given the nickname "King of Zhou Weilie", which was a "double name".
The monarch of the State of Qin who presided over the "Battle of Changping" was called "King Zhaoxiang of Qin", and his father was "King Huiwen of Qin".
Each of these "double words" has the meaning he prescribes, and when they are combined into a pair, they expand their merits.
During the Spring and Autumn Period and the Warring States Period, the "nicknames" of the princes and the Heavenly Son occasionally had a single word and a double word, and if there is such a difference, the reason for this is difficult to trace, perhaps in a popular word, that is, whether these "posthumous" kings are good and happy to define.
But the "good and great joy" may not be appropriate, perhaps they really have such a matching merit, so they have obtained "double praise".
Therefore, "Emperor Guangwu of Han", this nickname is not abrupt, and indeed it can better reflect Liu Xiu's great feats in restoring the Great Han after the Western Han was destroyed.
And this is the "courtesy name", the "temple number" of The Han Guangwu Emperor, which is the "single word".
The emperors of the Han Dynasty, not every emperor has a nickname, the whole Western Han Dynasty, that is, the four emperors have temple numbers, namely Liu Bang, Liu Heng, Liu Che, liu Yiji.
Liu Bang was the Taizu Emperor of the Han Dynasty, who opened up the country, so he was posthumously named "Taizu" and was named "Han Gaozu".
Han Gaozu was wrong in his statement, but because the literati of the Han Dynasty liked to call Liu Bang "Emperor Taizu Gao", this "Gao" was Liu Bang's "nickname", and Liu Bang should be "Han Taizu" and "Han Gao Emperor" in the official title.
However, when this kind of "temple" became a habit, it was difficult to correct, and the existence of "Gaozu" gradually became legal.
Liu Bang's concubine Liu Ying was emperor hui of Han, which was a "courtesy name", and emperor Hui of Han did not have a temple number.
Then there was Liu Heng, the Emperor of Han Wen, who had a temple name and was the "Taizong" emperor of the Han Dynasty, so Liu Heng was also known as "Han Taizong".
The Han Jing Emperor after Emperor Wen of Han did not have a temple number, and the next one with a temple number was Liu Che, the Emperor of the Han Dynasty, whose temple number was "Emperor Shizong", known in history as "Han Shizong".
The last emperor of the Western Han Dynasty to have a temple name was Liu Che's great-grandson, The Han Xuan Emperor Liu Yiji, because of his merits in creating "Zhaoxuan Zhongxing", so he was posthumously named "Emperor Zhongzong", known in history as "Han Zhongzong".
Although there are not many temple numbers in the Western Han Dynasty, the influence on later emperors is very large, and the temple number templates of the Western Han Dynasty have become important templates for later emperors to learn to imitate, "Taizu", "Gaozu", "Taizong", and subsequent dynasties can be seen.
The founding emperor of the Eastern Han Dynasty, because of the "opening of the country", also received the posthumous title of "ancestor".
Liu Xiu's temple name is "Han Shizu".
Although Liu Xiu's "courtesy name" did not usurp Emperor Wu of Han, the temple number was somewhat "offensive" to Emperor Wu of Han.
The so-called "world" has the meaning of "opening the world", and Emperor Wudi of the Han Dynasty undoubtedly opened up an era to resist the Xiongnu and centralize imperial power, but because he was not the founder of the country, he could only be called "Zong", not the ancestor.
And Liu Xiu, in the strict sense, can only be regarded as an imprecise "ancestor", under the public opinion at that time, Liu Xiu himself did not dare to say, re-opened a big han, he can only say Guangfu, so the title of zu should not be said by him, can only be discussed by his descendants after his death.
Similarly, Liu Xiu opened up an era, the Eastern Han And Western Han dynasties were very different in productivity, social structure, in the Western Han Dynasty, since the Han Wu Emperor, the nobles and powerful were beaten to the head, but Liu Xiu used the power of these people to ascend the throne, he vigorously supported the rise of these families.
These vested interests decided to give Liu Xiu the temple title of "Shizu", although in terms of status, this "temple number" was higher than that of Emperor Wu of Han, but the Western Han Dynasty was gone, and where would some people think so much, so Liu Xiu became the "Ancestor of the Han Dynasty".
However, later generations always like to call Liu Xiu's "nickname", Han Guangwu Emperor, and rarely say his temple number, causing this situation, to a large extent, is related to the habit of thinking, after all, not every emperor has a temple number, but whether it is an emperor or a prince, generally speaking, there are nicknames.
But then again, Liu Xiu is really not the one with the longest "nickname".
After the Sui Dynasty, the emperor's nickname could reach as many as a dozen words, such as Tang Taizong Li Shimin, whose full title was "Emperor Wenwu Dasheng Daguangxiao", but was simply referred to as "Tang Wendi", and about him, later generations preferred to call his temple name, Tang Taizong.
From this period onwards, almost all the emperors, the title is "long nickname", the number of words is not limited, but it must be very comprehensive, don't look at the usual title as if there is only one "single word" name, in fact, their full name is much longer than Liu Xiu.
For example, nurhaci, the founder of the Qing Dynasty, his full title is "Chengtian Guangyun Shengde Shengong Zhaoji Ji Ji Ren XiaoRui Wuduan Yi Qin An Hongwen Dingye Gao Emperor", if it is called by the full name, then each other's chat and writing must take a breath to continue, so about these emperors, the temple number began to be called more than the nickname.