Do people with the surname Dong in Laiyang come from a branch?

The Dong surname comes from the same origin, and they are all descendants of Emperor Zhuanxu of Gaoyang. According to historical records, the birthplace of the Dong surname is in three places: northern Dingtao, Shandong, southwestern Shanxi, and Pingyuan County, Shandong. During the Qin and Han Dynasties, people with the Dong surname were more concentrated in present-day Shanxi, Gansu, Hebei, and Henan. In addition, Shaanxi, Dingtao and Gaoqing in Shandong, Guangzhou in Guangdong, Ziyang and Deyang in Sichuan, Yuyao in Zhejiang, Xiangyang and Zhijiang in Hubei, Fuzhou in Fujian, Yuzhou, Yichuan, Nanyang, Kaifeng, Qixian, Xinyang, Lingbao and other places in Henan There are also scattered people named Dong. Later, in the process of continuous reproduction, the Dong surname developed into prominent local families in Gansu and Shandong. During this period, according to historical records, the reproduction and migration of the people with the surname Dong are as follows: Dong Yi, a descendant of Xinyou who came from the Taishi branch of Jin State, was named King Zhai, and his capital was Gaonu (now Yan'an City, Shaanxi Province). The east bank of the river), and later his descendants moved to Longxi (now Lintao, Gansu); Dong Zhongshu in the Western Han Dynasty was from Guangchuan (now Zaoqiangdong, Hebei), and his great-grandson moved from Guangchuan to Longxi, and his descendants moved to Hedong (now Xia County, Shanxi) northwest). During the Wei, Jin, Southern and Northern Dynasties, social unrest caused people to disperse and move to the south in large numbers. People with the Dong surname migrated from Anhui, Jiangxi, Jiangsu, Hubei and the middle and lower reaches of the Yangtze River. The Sui and Tang Dynasties were a period of great proliferation of the Dong surname, and people with the Dong surname moved to Fujian and Guangdong. In the Tang Dynasty, when Chen Yuanguang and his son from Gushi (now in Henan) opened Zhangzhou and entered Fujian, as well as when Wang Chao and Wang Shenzhi entered Fujian, they all had the surname Dong. During the Song and Yuan Dynasties, the Jin soldiers entered the Central Plains and the Mongolian army marched southward again forcing the Dong surname to move south. At this time, people with the Dong surname appeared in Yuhang, Zhejiang. During the Ming and Qing Dynasties, residents with the Dong surname were distributed in Taiwan, Nanyang Islands, and some European and American countries and regions. During this period, the Dong surname could be said to be spread all over the country and abroad. Today, the Dong surname is most concentrated in Hebei, Shandong, Shanxi, Yunnan, Liaoning, Zhejiang and other provinces. The three provinces of Hebei, Henan, and Shanxi account for 31% of the total population surnamed Dong, and the six provinces of Yunnan, Shandong, Liaoning, Zhejiang, Sichuan, Hubei, and Hubei account for another 38%. However, people with the surname Dong live in Hebei. With 11% of the population, it is the province with the largest number of people named Dong. The surname Dong is the 29th most common surname in China today. It has a large population, accounting for about 0.61% of the country's Han population.

Dong Zhongshu once served as an official in Shandong and served as Prime Minister of Jiaoxi. Although his time was short, he left many descendants. Dong Zhongshu's son Dong An moved back to Longxi from Guangchuan, and his descendants moved to Hedong again. From the Yuan Zhizheng period (1341 to 1369 AD) for 28 years, to the Ming Dynasty Hongwu period (1369 to 1371 AD) In one year (1369 is believed), he moved to Gezigou, Yandun Village, Mayi County, Shuozhou together with the people from Dingtao and other places in Shandong, and moved to Zijun, Xinzhou during the Hongwu Period of the Ming Dynasty. This tribe gathered from Shandong to Gezigou, Yandun Village, Mayi County, Shuozhou. In a certain year from 1369 to 1371 AD (1369 is considered credible), they moved to Xinzhou Zijun moved several times. In the history of the Dong family in Shanxi, there were officials and generals. Antique generals' epitaphs were found on giant dragon tablets in field archeology. The Dong family in Xiurong Zijun, Shanxi was recorded in the genealogy. Counting from the ancestor, as of 2008, they are the 220th to 225th generation of the Dong family. Counting from Dong Zhongshu, they are the 70th to 73rd generation descendants of Dong Zhongshu. The current lineage ranges from the 19th to the 23rd generation. Believable. Have you ever heard of four generations living under the same roof? As of 2008, they are all the 220th to 225th generations of the Dong family. Counting from Dong Zhongshu, they are the 70th to 73rd generation of Dong Zhongshu. , from the 19th to the 23rd generation are all credible. According to the generation, the local Dong family master and the great-great-grandson are still alive together, that is, the 5th generation are the same. Why is there a big gap in the birth rate?