1. It comes from the surname Zi, and is named after the country. During the reign of King Cheng of Zhou, after Zhou Gongdan put down the rebellion of Yin Hou Wu Geng and San Jian, he granted Wei Ziqi the title of "Song Dynasty" in Shangqiu, the birthplace of the Shang Dynasty. By the time of Song Xianggong, the Song State had become the leader of the world's princes and one of the five hegemons of the Spring and Autumn Period. In the 21st year of King Zhaoxiang of Qin (286 BC), the State of Qi destroyed the Song Dynasty, and his descendants took the country as their surname. This branch originates from the authentic surname Song and accounts for the vast majority of the population with the surname Song.
2. Comes from the surname Ji, named after the ancestor. Ji Song, courtesy name Zigong, also known as Gongzi Song, was an aristocratic official of the Zheng State during the Spring and Autumn Period. His descendants who take their ancestor's name as their surname are called the Song family.
The contemporary Song surname is the 22nd most common surname. Celebrities: Song Qingling, Song Meiling, Song Chunfang, Soong Chuyu.
Extended information:
During the Song Dynasty, there were about 880,000 people with the Song surname, accounting for about 1.1% of China's total population, ranking 16th. Shaanxi is the largest province with Song surnames, accounting for approximately 19.4% of the total population with Song surnames. The distribution in China is mainly concentrated in Shaanxi, Hebei, Sichuan, and Henan. These four provinces account for 67% of the total population with Song surname, followed by Shanxi, Zhejiang, and Shandong. The Song surname in these three provinces accounts for another 16%. China has formed two population gathering areas with the Song surname centered on Qinchuan and Hebei and Henan. The Song surname mainly lives in the northern region.
During the Ming Dynasty, there were approximately 540,000 people with the Song surname, accounting for approximately 0.57% of China’s total population, ranking 37th. Shandong is the largest province with Song surname, accounting for about 17.1% of the total population with Song surname. The distribution in China is mainly concentrated in Shandong, Jiangxi, and Zhejiang. These three provinces account for about 46% of the total population with Song surname, followed by Shanxi, Jiangsu, and Hebei. These three provinces account for another 25% of the population with Song surname. Its population mainly migrates from north to east, southeast and south.
During the 600 years between the Song, Yuan and Ming dynasties, the net growth rate of China’s total population was 20%, and the growth rate of the population surnamed Song was negative. In the face of wars and massacres, the first group of victims were those mainly in the north. The surname Song is a surname from the northern region, and they suffered heavy losses. China has re-formed two large areas where the population of the Song surname is concentrated: Shandong, Hebei, Jiangxi, Zhejiang and Jiangxi.
Baidu Encyclopedia——Song Family