Li Chengqian's grandson, Li Shizhi, became the prime minister of the Tang Dynasty. Li Shizhi was the third son of Li Chengqian's son, Li Xiang. He had always kept a low profile in the Li Tang imperial clan and was lucky enough to escape Wu Zetian's massacre of the Li Tang imperial clan. After Emperor Zhongzong of Tang, Li Xian, ascended the throne, in order to consolidate the status of the royal family, he began to put the people in the Li Tang royal family in important positions. As Li Chengqian's descendants had already withered, Li Shizhi was put in an important position by the court and served as prime minister during the reign of Emperor Xuanzong of the Tang Dynasty.
Li Chengqian was the eldest son of Li Shimin, Emperor Taizong of the Tang Dynasty. He was the seventh grandson of Li Yuan, Emperor Gaozu of the Tang Dynasty.
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Li Chengqian's grandson, Empress Eagle, grew up. This question did not find a relevant answer in the search results provided. Please provide more relevant information to answer your question.
According to the search results provided, there was no definite answer about Li Chengqian's eldest grandson, Empress Eagle, growing up. The search results included a list of novels and chapters related to Li Chengqian, but did not provide any information about his specific situation or story. Therefore, he could not answer this question.
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