Even as Cao Cao consolidated control over northern China in 204 CE, Yuan Tan, the eldest son of Yuan Shao, remained fixated not on survival – but on destroying his younger brother, Yuan Shang.
In 192 AD, after Li Jue and Guo Si seized Chang’an, murdered Wang Yun, and captured Emperor Xian, they established control over the Sili region and eastern Liang Province(Liangzhou), effectively holding the Han central government hostage for the next four years. Though they nominally ruled in the emperor’s name, real power in the empire…