Liaoning). The increased influence of these provincial governors formed the basis on which later warlords would control large regions of the Han empire. Imperial power struggle (189) Emperor Ling died in 189 and was succeeded by his 13-year-old son, Liu Bian (born to Empress He), who became known as Emperor Shao. Empress He, now empress dowager, became regent to the young emperor, while her older brother, General-in-Chief He Jin, became the most powerful official in the imperial court. He Jin and Yuan Shao plotted to exterminate all the Ten Attendants, a group of influential eunuchs officials in the court, but Empress Dowager He disapproved of their plan. In a fateful move, He Jin summoned Dong Zhuo, a warlord controlling the battle-tested Liang Province (涼州; covering present-day Gansu), to march on the capital Luoyang to pressure Empress Dowager He into eliminating the Ten Attendants. After the eunuchs discovered He Jin's plot, they lured him into the palace and murdered him (22 September 189). In response, Yuan Shao led the imperial guards on an indiscriminate massacre of the palace eunuchs. The surviving eunuchs kidnapped Emperor Shao and his younger brother, the eight-year-old Prince of Chenliu (raised by his grandmother Empress Dowager Dong), and fled north towards the Yellow River, but were finally forced to commit suicide by throwing themselves into the river. Dong Zhuo arrived on the scene and found Emperor Shao and the Prince of Chenliu. The young emperor appeared nervous and fearful, while the prince remained calm and composed, and gave orders to Dong Zhuo to escort them back to the palace. Dong Zhuo used the opportunity to seize control of state power and bring his army into the capital. Not long later, Dong Zhuo deposed and poisoned Emperor Shao and replaced him with the Prince of Chenliu, who became known as Emperor Xian. Dong Zhuo dominated the imperial court and named himself "Chancellor of State" (相國), a title not held by anyone since the Western Han dynasty statesman Xiao He; Dong Zhuo also granted himself the privilege of attending court without needing to disarm himself or remove his shoes. Resistance against Dong Zhuo (189–191) In the spring of 190, several provincial officials and warlords formed a coalition against Dong Zhuo, claiming that he was set on usurping the throne and had effectively kidnapped Emperor Xian. Yuan Shao, Administrator of Bohai (around present-day Cangzhou, Hebei), was nominated to be the