[5][6] The Kojiki records that he ruled from the palace of Ikekokoro-no-miya (葛城掖上宮, and in the Nihon Shoki as 掖上池心宮) at Waki-no-kami in what would come to be known as Yamato Province.

[9] His name might have been regularized centuries after the lifetime ascribed to Kōshō, possibly during the time in which legends about the origins of the imperial dynasty were compiled as the chronicles known today as the Kojiki.

[8] While the actual site of Kōshō's grave is not known, the Emperor is traditionally venerated at a memorial Shinto shrine (misasagi) in Gose.

[11] Outside of the Kojiki, the reign of Emperor Kinmei[b] (c. 509 – 571 AD) is the first for which contemporary historiography is able to assign verifiable dates.

Unless otherwise noted (as BC), years are in CE / AD  * Imperial Consort and Regent Empress Jingū is not traditionally listed.