In the spirit of Halloween:
King Bongsan, who reigned over the Goguryeo Kingdom from 292-300 A.D., was most likely not a popular ruler. He was arrogant and even worse he was suspicious of everyone — including his family. He had his uncle, a popular war hero, executed for treason and forced his own younger brother to commit suicide. In 296, Goguryeo was invaded by a Chinese army that was fairly successful in the beginning until, according to legend, their disrespect for the dead helped lead to their defeat.
Chinese soldiers dug up the tomb of Bongsan’s father, Seocheon. Apparently, as they were digging up the tomb, a number of the Chinese troops literally died from terror. Then, the sounds of music began to emanate from the tomb convincing the Chinese general that the spirit of Seocheon would not suffer their disrespect. Wisely, he and his forces retreated back to their own country and Goguryeo was saved. Bongsan, however, was not. Just four years later the people rose up in revolt and Bongsan and his two sons committed suicide.
You can read more of Korea’s restless dead here – at Korea Times.