Was Guangxu killed by Cixi? Although there is no conclusive historical evidence to directly prove that the Empress Dowager Cixi ordered the killing of the Guangxu Emperor, according to the existing information and historical background analysis, the Empress Dowager Cixi was closely related to Guangxu's death.
Emperor Guangxu implemented the Wuxu Reform in the later period of his pro-government, but the reform violated the interests of the old school led by Cixi, resulting in the failure of the reform, and Guangxu himself was also placed under house arrest by the Empress Dowager Cixi and lost his freedom for ten years. Emperor Guangxu was not born to the Empress Dowager Cixi, who was the adoptive mother of Emperor Guangxu, so it did not exist"Tiger poison does not eat children"situation. 
Moreover, on the eve of the failure of the reform reform, Emperor Guangxu asked Kang Youwei to unite with Yuan Shikai to launch a coup d'état against Cixi, although it ended in failure, but this matter made them incompatible. Before the death of Emperor Guangxu, Cixi's physical condition had deteriorated severely, and Guangxu was in the prime of life but suddenly became seriously ill and died the day before Cixi's death, which led to speculation about the cause of Guangxu's death.
Chinese officials have tested the hair and clothing of the Guangxu Emperor, and the results show that Guangxu has a large amount of arsenic in his body, which is more evidence of Guangxu's unnatural death. Because Guangxu was closely monitored and restricted in his movement at that time, and the people around him were controlled by the Empress Dowager Cixi, the cause of Emperor Guangxu's death had a lot to do with Cixi.
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