 Believing he had won over her, Han Tuozhou relaxed his guard, while Yang triumphed over him by convincing the emperor to sign another edict making her empress.Empress Yang did not forgive Han Tuozhou, tried several times to turn the emperor against him, and finally sent her ally Shi Miyuan to murder him in 1207.The emperor discovered the plot, but she pleaded with him not to side with her enemy less she should commit suicide, and he agreed not to interfere.