There is an explanation in the Xuanzi Kangxi dictionary.

It is said that in Qian'an County, Tangshan City, Hebei Province, Xiazhang Town, Tai'an City, Shandong Province, and Xuanzhuang Village, Yanggu County, Shandong, there is even a Xuan ancestral hall at the east bridge of the village, and many people have the surname Xuan. Qian'an County, Tangshan City, Hebei Province, the words of this surname are slightly different, it is a single person next to + Xuan.

There is a genealogical order, Guo, Zuo, Wei, Ji, Shi, Zhao, Li, Qi, Da, and Yi. In Qian'an County, the starting words "rich, jing, and fu" are all "Shi" characters.

The surname "Xuan" is a relatively rare surname in China today, but it is widely distributed. The origin of the surname "Xuan" can be traced back to the Yellow Emperor, the first ancestor of Chinese humanities, and its two sources are related to the Yellow Emperor.

First, the surname "Xuan" is the descendant of Xuanhuan, the son of the Yellow Emperor;

The second passer is the descendant of Xuanshou, the courtier of the Yellow Emperor.

The two are recorded in the Five Emperors.

Check the names of "Xuan" people in all dynasties in China, all of whom were born before the Song Dynasty.

The Western Han Dynasty had mystical customs, famous doctors. Legend has it that he was invisible and figureless, and was appreciated by the king of the river and wanted to match his beloved daughter, so he fled to Hengshan to marry.

There is Xuanhe in the Eastern Han Dynasty, who was recommended by the fifth Lun of the famous minister, and successively served as Jiujiang Taishou and other positions, known for his integrity and rigor, and tired of officials and farmers.

There was a Xuanlan in the Southern Qi Dynasty, and he was a famous political commentator at that time.

After the Song Dynasty, some people with the surname Xuan were changed to the surname "Yuan", which led to a decrease in the population of the surname, and most of the reasons for changing their surnames were to avoid secrecy.

1. During the Northern Song Dynasty, because Zhao Kuangyin's father was called Xuan Lang, he ordered that all people with the surname Xuan in the world should be changed to the surname Yuan, and could not have the same surname as his father.

2. During the Qing Dynasty, Kangxi's name was Xuanye, and the surname "Xuan" was changed to the surname "Yuan".

There are also some who have changed their surnames to "Hyun".

As for the current Xuan surname, most of them were changed during the household registration census after the founding of the People's Republic of China.

Xuan――

changing, and it is a regular infinite change;

Far away, no results can be seen.

Xuanse――

It's not black, it's that you can't see exactly what color it is from a distance.

http://h5.17k.com/inc/fragment/1/3671.html

The summer benefits have been upgraded again, and a large number of works can be read for free!