According to the description in the shrine's biography of Tamatsushima-jinja Shrine, when Empress Jingu advanced the troops to the peninsula, the god of Tamatsushima showed extreme miraculous power, so the Empress paid back by enshrining a branch shrine for the deity in Amano, Katsuragi-cho.
玉津島神社の社伝の説明では、神功皇后が半島に軍を進めた時に、玉津島の神が大変な霊威をあらわしたため、皇后がこれに報いて、御分霊を葛城町天野の地にお鎮め申し上げたとある。