1 The third son from Zhou Wenwang. After King Wu destroyed the Shang Dynasty, he established the Zhou Dynasty, sealed Uncle Xian in the tube, and established a governing country, so that he and Cai Shu could govern the adherents of the Shang Dynasty together. After the death of King Wu, the young king succeeded to the throne. Being too young, Zhou Gongdan presided over state affairs. Guan Shu and Cai Shu thought that Zhou Gongdan's rule was not conducive to the Zhou Dynasty, so they jointly launched a rebellion, which was quickly quelled by Zhou Gongdan. After being killed, his descendants took his former fief "Guan" as their surname.
2 from Guan Zhong. Guan Zhong was a famous politician in the Spring and Autumn Period, a descendant of Zhou Muwang, and later became the prime minister of Qi, helping Qi Huangong to govern the country. The descendants of Guan Zhong are also named Guan, known as Guan.