Comprehensive Study of Ancient and Medieval Aspects in Naniwa and Osaka Bay Areas

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K00969
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 03020:Japanese history-related
• Research Institution: Kansai University
• Principal Investigator: Nishimoto Masahiro 関西大学, 文学部, 教授 (00192691)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 古代難波津 / 渡辺津（天神橋付近）説 / 三津寺町説 / 古地理変遷図 / 難波屯倉 / 難波大郡 / 蝦蟇行宮 / 後期難波宮

Outline of Final Research Achievements

By absorbing the results of research on ancient history, medieval history, archaeology, ancient literature, and historical geography, I reexamined the historical aspects of Naniwa and the Osaka Bay area in ancient and medieval times from a comprehensive perspective. As a result, we came to the conclusion that the ancient Naniwa-port existed in Watanabe-port (near Tenjinbashi) in the 5th and 6th centuries, but moved to the vicinity of Mitsutera-machi in the 7th century.
I also argued that the Naniwa Miyake, which was built in the 6th century, was remodeled into Koshiro Imperial Villa in the middle of the 7th century, was located on the lowlands along the nakatsu-river. Naniwa Ogori was located on the highlands of the Uemachi plateau, and it is believed that guesthouses such as the Kudara-kan also existed in the surrounding area.

Free Research Field

日本古代史

Academic Significance and Societal Importance of the Research Achievements

学際的な研究成果を総合することによって、難波津の所在地が定まったことにより、古代における難波と大阪湾岸地域の歴史的な変遷過程がより明確に理解できるようになった。５世紀に難波高津宮、７～８世紀に難波宮が造営される背景に、政権の外港であった難波津の移動が影響していることが考えられる。また、難波大郡、難波客館、難波屯倉（子代離宮）などの所在地について通説とは異なる見解を提示できたことは、今後の発掘調査の進展に繋がる可能性がある。古代難波地域は渡辺津（天神橋付近）だけではなく、複数の政治的拠点を有していたことが判明したことで、大阪における新たな文化遺産の発見・創出の動きが強まることが期待される。