"Omi no Kuni Fudoki" (records of the culture and geography of the Omi Province) says when Tatamihiko no mikoto of Ibuki no oka Mountain (Mt. Ibuki) competed with his niece Azaihime no mikoto of Azai dake Mountain (Kanakuso dake Mountain) for height, he lost and in anger cut off her head, which fell into the lake and became Chikubushima Island.
『近江国風土記』には、夷服岳（伊吹山）の多多美比古命が姪にあたる浅井岳（金糞岳）の浅井姫命と高さ比べをし、負けた多多美比古命が怒って浅井姫命の首を斬ったところ、湖に落ちた首が竹生島になったという記述がある。