MINAMOTO no Yorimitsu, known as a warlord in the middle of the Heian period who subdued "Shuten Doji" (the leader of a group of bandits that roamed the region around Kyoto), went with his retainer WATANABE no Tsuna to Rendaino in Kitayama of Rakugai (outside area of the capital Kyoto), where they met with a skull flying in the sky;
酒呑童子討伐で知られる平安時代中期の武将・源頼光が家来の渡辺綱を連れて京都の洛外北山の蓮台野に赴くと、空を飛ぶ髑髏に遭遇した。