Emperor Nintoku

Emperor Nintoku (仁徳天皇, Nintoku-tennō), also known as Ohosazaki no Sumeramikoto (大鷦鷯天皇) was the 16th Emperor of Japan, according to the traditional order of succession. 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).

While his existence is generally accepted as fact, no firm dates can be assigned to Nintoku's life or reign. He is traditionally considered to have reigned from 313 to 399, although these dates are doubted by scholars.

Source: Wikipedia — https://en.wikipedia.org/wiki/Emperor_Nintoku