Kù (, variant graph ), usually referred to as Dì Kù (), also known as Gaoxin or Gāoxīn Shì () or Qūn (), was a descendant of the Yellow Emperor. He went by the name Gaoxin until receiving imperial authority, when he took the name Ku and the title Di, thus being known as Di Ku. He is considered the ancestor of the ruling families of certain subsequent dynasties. Some sources treat Ku as a semi-historical figure, while others make fantastic mythological or religious claims about him. Besides varying in their degree of historicizing Ku, the various sources also differ in what specific stories about him they focus on, so that putting together the various elements of what is known regarding Ku results in a multifaceted story. Di Ku was (according to many versions of the list) one of the Five Emperors of the Three Sovereigns and Five Emperors of Chinese mythology. Ku, or Gaoxin, is also known as the "White Emperor". Birth Ku's lineage is derived from descent from the legendary Yellow Emperor, then through the line of Shaohao (as opposed to the line through Changyi, which led to Zhuanxu). He was the son of Jiaoji (), and thus grandson to Shaohao, and great-grandson to Yellow Emperor. According to speculative dates calculated after 100 BC by Liu Xin, he is supposed to have ruled from c. 2436 BC to c. 2366 BC, though other dates are also mentioned. As emperor When he became emperor, Ku added the title Di, meaning "Thearch" (commonly translated as "Emperor"), in front of his name. After achieving the imperial title, Ku was said to travel seasonally by riding a dragon in spring and summer, and a horse in autumn and winter. Among other things, Ku was said to be an inventor of musical instruments and composer of songs. According to the Lüshi Chunqiu, drums, bells, chimes, pipes, ocarinas, and flutes were all invented, on the orders of Ku, by his subordinate Youchui(有倕); Ku's lyrics had musical scores(titles were 九招(jiuzhao),六列(liule),六英(liuying, meaning snoflake)) composed by his assistant Xianhei(咸黑); and by a further imperial command, a dance accompaniment was provided by a phoenix. Although Ku held the title Di, it is unclear what territory, if any, his empire might have consisted of. The same title Di was later assumed by the King of Qin, upon conquering his neighboring kingdoms and forging them into the first historically-known empire