Korean surnames usually consist of three syllables, namely three Chinese characters pronounced in Korean proverbs. The surname comes first, and one word in the first name usually represents seniority.
On the ancient Korean peninsula, the ancestors of the Korean nation Baekje and Silla began to use surnames in the fourth and sixth centuries respectively. Korean surnames can also be divided into single surnames and compound surnames. The most common surnames are Jin, Li, Park, Cui, Zheng and Jiang, and the compound surnames are, Zhuge, Dugu, Xianyu, Huangfu and Nangong. According to 1985 survey of population and national conditions in Korea, Koreans have 275 surnames. "
Surnames such as Lin, Lu, Liu, Che, Luo, Lu, Nangong, Rui, Wang and Wu are circulated in the genealogy. The ancestors were China people who entered the Korean peninsula during the Warring States Period, Qin and Han Dynasties.
Baidu Encyclopedia-Han surname
People's Daily Online-Why are Korean surnames so single?