Lü Buwei (291–235 BCE) was a Chinese merchant and politician of the Qin state during the Warring States period. Originally an influential merchant from the Wei () state, Lü Buwei met and befriended King Zhuangxiang of Qin, who was then a minor prince serving as a hostage in the Zhao state. Through bribes and machinations, Lü Buwei succeeded in helping King Zhuangxiang become the heir apparent to the Qin throne. In 249 BCE, after King Zhuangxiang ascended the throne following the death of his father, King Xiaowen, he appointed Lü Buwei as his chancellor () and ennobled him as "Marquis Wenxin" (). After King Zhuangxiang's death in 247 BCE, Lü Buwei became the chancellor and regent to King Zhuangxiang's young son, Ying Zheng, who later became Qin Shi Huang (First Emperor of the Qin Dynasty). In 235 BCE, after being implicated in a scandal involving the Queen Dowager Zhao (Ying Zheng's mother) and her illicit lover Lao Ai, Lü Buwei was stripped of his posts and titles and was banished to the remote Shu region in the south of Qin. While in exile, Lü Buwei committed suicide by consuming poison. Apart from his political career, Lü Buwei is also known for sponsoring the Lüshi Chunqiu, an encyclopaedic compendium of the ideas of the Hundred Schools of Thought that was published in 239 BCE. Life The primary sources of information about Lü Buwei date from the first century BCE: Sima Qian's Shiji (Records of the Grand Historian), and Liu Xiang's Zhan Guo Ce (Strategies of the Warring States) and Shuoyuan (, Garden of Stories). Since these three Han Dynasty texts openly criticise both Lü Buwei and the Qin Dynasty, some alleged stories (for example, Lü's private thoughts and conversations) can be discounted. Note that some of the following English translations come from John Knoblock and Jeffrey Riegel's scholarly study of the Lüshi Chunqiu. Lü Buwei's biography in the Shiji mentioned that he was from the Wei state and he became a successful travelling merchant earning "thousands of measures of gold". In 267 BCE, the first son of King Zhaoxiang of the Qin state died, so King Zhaoxiang named his second son, Lord Anguo, as his new heir apparent. Lord Anguo promoted his concubine, Lady Huayang (), who was childless, to the status of his primary spouse. Lord Anguo had over twenty sons. Among them, Yiren, who ranked somewhere in the middle