He was Wu Zetian's second son, so why would Wu Zetian want to kill him just because of a poem?
This is the answer to a fictional novel. Here are the possible plots: As the second son of Wu Zetian, Li Xian once wrote a poem to express his regret and longing for his parents. However, this poem aroused Wu Zetian's dissatisfaction and jealousy. It was said that this poem described the scene of Li Xian missing his father and his nostalgia for his father, which made Wu Zetian feel that Li Xian lacked filial piety and loyalty. Wu Zetian thought that this poem was hinting that her status and power were inferior to her father's, which made her even more dissatisfied with Li Xian. In addition, Wu Zetian also heard that Li Xian had an affair with other women, which deepened her distrust and anger towards him. In the end, Wu Zetian decided to launch a coup and kill Li Xian and his family. It should be noted that this was only a fictional plot. There was no such thing in history.