Boeun County is a county in North Chungcheong Province, South Korea. Boeun, was a South Korean town named in 1406 by a remorseful Kin…Boeun County is a county in North Chungcheong Province, South Korea. Boeun, was a South Korean town named in 1406 by a remorseful King Taejong, who felt relieved that he had cleared his conscience after having participated in a ceremonial ritual at the local Beopjusa temple to appease the spirits of his dead younger half-brothers, whose deaths he had caused in a power struggle years earlier.