General Wei. After Xiahou Ying, Taizu became his younger brother. If you don't learn much about guns and sticks, your martial arts skills will be outstanding. Taizu raised an army, and Dun led his troops to surrender, and they continued to fight from then on. When Taizu was attacking Lü Bu, Cao Xing, the general of the army, shot him in the left eye. Dun used his arrow to kill Lu Bu, and both armies were horrified. Hou Dun was often a vanguard, killing enemies and breaking formations, charging ahead and making numerous meritorious deeds. Taizu was seriously ill, so he went to see him. He was frightened by a ghost at the palace gate and fell ill from then on. And Emperor Wen Jianzuo made Dun the general. Spin it and die. Emperor Wen paid tribute to him.
This is what the novel says. He fell ill after being frightened by ghosts and then died.
The official history only says that he "died a few months after he was promoted to general", not Tell the cause of death