Cui Shi
After Emperor Ruizong became Taishang Huang (retired emperor), she was still the most powerful person in the government, and her opinion was binding on everything, and most Government officials and chancellors were her associates. (Of the seven chancellors at the time, five – Dou Huaizhen, Xiao Zhizhong, Cen Xi, Cui Shi, and Lu Xiangxian – were made chancellors at her recommendation, although Lu was not considered a member of her party.)