Dong Zhuo courtesy name Zhongying, was a politician and warlord who lived in the late Eastern Han Dynasty. He seized control of the capital Luoyang in 189 when it was in a state of turmoil following the death of Emperor Ling and a clash between the eunuch faction and some court officials led by General-in-Chief He Jin. Dong Zhuo subsequently deposed Emperor Shao and instated Emperor Xian.

Dong Zhuo rose to power in the Han imperial court and ruled the nation with tyranny and cruelty for a brief period of time. The following year, a coalition of regional officials and warlords launched a punitive campaign against Dong, forcing him to move the capital to Chang'an. Dong Zhuo was assassinated in 192 by his subordinate Lü Bu as part of a plot orchestrated by Interior Minister Wang Yun.

(Source: Wikipedia)