[3][4][5] Due to his reputation for goodness derived from depictions in the Kojiki and Nihon Shoki, he is sometimes referred to as the Saint Emperor (聖帝, Hijiri-no-mikado).

[8] Nintoku is regarded by historians as a ruler during the early 5th century[9] whose existence is generally accepted as fact without attributing all of the things he allegedly accomplished.

The name "Nintoku" also might have been regularized centuries after the lifetime ascribed to him, possibly during the time in which legends about the origins of the imperial dynasty were compiled as the chronicles known today as the Kojiki.

[13] Outside of the Kiki, the reign of Emperor Kinmei[a] (c. 509 – 571 AD) is the first for which contemporary historiography has been able to assign verifiable dates.

[3] The Nintoku-ryo tumulus is one of almost 50 tumuli collectively known as "Mozu Kofungun" clustered around the city, and covers the largest area of any tomb in the world.

[17] The Imperial tomb of Nintoku's consort, Iwa-no hime no Mikoto, is said to be located in Saki-cho, Nara City.

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