Song is the pinyin transliteration of the Chinese family name 宋.
The first written record of the character 宋 (Sòng) was found on the oracle bones of the Shang dynasty.
In the written records of Chinese history, the first time the character Song was used as a surname appeared in the early stage of the Zhou dynasty.
One of the children of the last emperor of the Shang dynasty, Weizi Qi (微子启), was a duke from the state named Song, who descended from his ancestor Xie (契) whose name was derived from the surname Zi (子).
Xie was born from Jiandi from the swallow from the blackbird egg, who came from Yousong (有娀), the legendary state.