Naniwa (難波京) was an Ancient Capital of Japan. It is stated the Emperor Nintoku had a Palace here, which was repaired after a three-year period when he lessened the taxes of his people causing his Palace to fall into disrepair.1
It later became the city of Osaka.
1. Martin, P. (1997) ”The Chrysanthemum Throne”. Gloucestershire: Sutton Publishing Limited.
Check out Japan Archives, our Japanese History Podcast