The next year, Emperor Shotoku visited Yugeno-miya Detached Palace in Kawachi Province and declared to designate the place as the western capital of Japan but she soon fell sick and died about 100 days later.
しかし翌年、称徳天皇は河内の由義宮に行幸し同地を西京とする旨を宣したのち、病臥、100日余で崩御した。