meets Lü Bu at his camp outside the city. Attracted by the gifts and feeling convinced by Li Su, Lü Bu agrees to betray his foster father and defect to Dong Zhuo's side. That very night, Lü Bu barges into Ding Yuan's tent, decapitates him and brings his head as a present to Dong Zhuo the following day. See also Lists of people of the Three Kingdoms References Chen, Shou (3rd century). Records of the Three Kingdoms (Sanguozhi). Fan, Ye (5th century). Book of the Later Han (Houhanshu). Luo, Guanzhong (14th century). Romance of the Three Kingdoms (Sanguo Yanyi). Pei, Songzhi (5th century). Annotations to Records of the Three Kingdoms (Sanguozhi zhu). 2nd-century births 189 deaths Deaths by decapitation Han dynasty politicians Han dynasty warlords