to be capable of increasing revenues for palace use. He eventually made both Huangfu and Cheng chancellors, despite earnest pleas by Pei and Cui Qun, who was a chancellor by this point as well, against the move. It was said that Huangfu soon was speaking against Cui and Pei, causing both to be sent out of the capital. In spring 819, there was an occasion when Emperor Xianzong had what was alleged to be Gautama Buddha's finger bone escorted from a temple in Fengxiang (鳳翔, in modern Baoji, Shaanxi) to the palace in a grand ceremony, kept the bone in the palace for three days, and encouraged the people to worship it and make donations to the temples. When the official Han Yu spoke against it, Han was exiled to be the prefect of Chao Prefecture (潮州, in modern Chaozhou, Guangdong). Also in spring 819, after Li Shidao became suspicious of his officer Liu Wu, who was then resisting Tian's attack, and secretly ordered Liu's deputy Zhang Xian () to execute Liu and take over the troops. Zhang, who was friendly with Liu, revealed Li Shidao's orders to Liu. Liu responded by launching a surprise attack on Pinglu's capital Yun Prefecture (), capturing Li Shidao and his sons and executing them, delivering their heads to Chang'an. Emperor Xianzong made Liu, who had expected to succeed Li Shidao, the military governor of Yicheng Circuit (義成, headquartered in modern Anyang, Henan), and divided Pinglu into three circuits to weaken it and keep its territory under imperial control. By this point, Emperor Xianzong was taking medicines made by the alchemist Liu Mi (), who claimed that he could bring the emperor immortality. It was said that as a result of these medicines, Emperor Xianzong was becoming increasingly thirsty and irritable. It was said that he was so easily angered that the eunuchs serving him were often punished or even executed for minor faults, causing them to be fearful of him. In spring 820, he died suddenly, and it was commonly believed that he was assassinated by the eunuch Chen Hongzhi. It was said, however, that Chen's eunuch colleagues declared that Emperor Xianzong had died from Chinese alchemical elixir poisoning due to the medicines that he was taking. Tutu Chengcui tried to support Li Kuan, who had been renamed Li Yun (), to succeed Emperor Xianzong, but the other eunuchs Liang Shouqian (), Ma