Chen Xitong
Zhou's downfall was a significant political event; prior to Zhou, the removal of provincial-level party chiefs had only happened three times in post-Cultural Revolution history: Beijing party chief Chen Xitong in 1995, Shanghai party chief Chen Liangyu in 2006, and Chongqing party chief Bo Xilai in 2012. Former Hebei party chief Cheng Weigao (term 1993–1998) had also been disgraced, but not during his term as party chief.