That discovery jump-started the excavation and study by Naniwakyushi Kenshokai (Association of honoring publicly for Naniwa-kyu Palace site) under the leadership of Tokutaro YAMANE and, little by little, the remains of the palace in the Nara period became unraveled.
このことがきっかけになり山根徳太郎を指導者とする難波宮址顕彰会の努力により発掘・調査が進み、奈良時代の宮の遺構が次第に明らかになった。