In 979, by the order of the heir to the throne then (later Emperor Kazan), Seimei, at the age of 59, conducted a ritual to suppress the tengu (long-nosed goblins) of Mt. Nachi-san.
979年、59歳の晴明は当時の皇太子（後の花山天皇）の命で那智山(山)の天狗を封ずる儀式を行う。