Regarding the founder of the Qin dynasty, who was his grandfather?
Qin Shi Huang Qin Shi Huang ( ; 18 February 25910 September 210) was the founder of the Qin dynasty (秦朝 ) and was the first emperor of a unified China. He was born Ying Zheng (嬴政 ) or Zhao Zheng (趙政 ), a prince of the state of Qin. He became the King Zheng of Qin (秦王政 ) when he was thirteen, then China's first emperor when he was 38 after the Qin had conquered all of the other Warring States and unified all of China in 221 BC. Rather than maintain the title of "king" borne by the previous Shang and Zhou rulers, he ruled as the First Emperor (始皇帝 ) of the Qin dynasty from 220 to 210 BC. His self-invented title "emperor" (皇帝 , "  "), as indicated by his use of the word "First", would continue to be borne by Chinese rulers for the next two millennia.
List of rulers of China The list of rulers of China includes rulers of China with various titles. From the Zhou dynasty to the Qin dynasty, rulers usually held the title "king" (). With the separation of China into different Warring States, this title had become so common that the unifier of China, the first Qin Emperor Qin Shihuang created a new title for himself, that of "emperor" (). The title of emperor of China continued to be used for the remainder of China's imperial history, right down to the fall of the Qing dynasty in 1912. While many other monarchs existed in and around China throughout its history, this list covers only those with a quasi-legitimate claim to the majority of China, or those who have traditionally been named in king-lists. The following list of Chinese monarchs is in no way comprehensive.