Emperor Yūryaku
The 's entry for Emperor Yūryaku, also known as Ohatsuse no Wakatakeru, records an uprising, after the Emperor's death, of Emishi troops who had been levied to support an expedition to Korea. Emperor Yūryaku is suspected to be King Bu, but the date and the existence of Yūryaku are uncertain, and the Korean reference may be anachronistic. However, the compilers clearly felt that the reference to Emishi troops was credible in this context.