Question: Regarding the founder of the Qin dynasty, who was his grandfather?

<P0-S0> King Xiaowen of Qin (reigned 250 BC) was a Chinese king, who had a very brief reign. <P0-S1>  He is also known as Lord Anguo (安國君). <P0-S2>  His grandson was Emperor Qin Shi Huang. <SEP> <P1-S0> Li Si (; c. 280 BCSeptember or October 208 BC) was a Chinese politician of the Qin dynasty. <P1-S1>  He served as the Chancellor (or Prime Minister) of the Qin dynasty from 246–208 BC, well known Legalist writer and politician, and notable calligrapher. <P1-S2>  He served under two rulers: Qin Shi Huang, the king of the Qin state and later the First Emperor of the Qin dynasty; and Qin Er Shi, Qin Shi Huang's youngest son and the Second Emperor. <P1-S3>  Concerning administrative methods, Li "indicated that he admired and utilized the ideas of Shen Pu-hai", repeatedly referring to the technique of Shen and Han Fei, but regarding law followed Shang Yang. <SEP> <P2-S0> Ying Bu (died 195 BC), also known as Qing Bu, was a military general and vassal king who lived in the early Western Han dynasty. <P2-S1>  He was a native of Lu County (六縣; present-day Lu'an, Anhui). <P2-S2>  In his early life under the Qin dynasty, Ying Bu was convicted and sentenced to "qing" (黥; a form of punishment which involved branding a criminal by tattooing his face), so he was also called "Qing Bu". <P2-S3>  He was then sent to Mount Li to perform hard labour by constructing Qin Shi Huang's mausoleum. <P2-S4>  He later escaped with some men and became the leader of a bandit gang. <P2-S5>  Ying Bu participated in the insurrection against the Qin dynasty after the Dazexiang Uprising broke out in 209 BC. <P2-S6>  After the uprising failed, he became part of a rebel force led by Xiang Liang. <P2-S7>  He assisted Xiang Liang's nephew and successor Xiang Yu in overthrowing the Qin dynasty. <P2-S8>  After the fall of Qin, he initially fought on Xiang Yu's side in the Chu–Han Contention (206–202 BC), a power struggle for supremacy over China between Xiang Yu and Liu Bang (Emperor Gao). <P2-S9>  However, later, he defected to Liu Bang's side and helped Liu defeat Xiang Yu and become the emperor. <P2-S10>  During this period of time, Ying Bu held the title of "King of Jiujiang". <P2-S11>  After Liu Bang established the Han dynasty in 202 BC, he appointed Ying Bu as a vassal king and granted him the title of "King of Huainan". <P2-S12>  In 195 BC, Ying Bu rebelled against the Han dynasty but was defeated and killed. <SEP> <P3-S0> 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. <P3-S1>  He was born Ying Zheng (嬴政 ) or Zhao Zheng (趙政 ), a prince of the state of Qin. <P3-S2>  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. <P3-S3>  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. <P3-S4>  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.