, 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 .
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.
Legendary narrative
The Japanese have traditionally accepted Nintoku's historical existence, and a mausoleum (misasagi) for Nintoku is currently maintained. The following information available is taken from the pseudo-historical Kojiki and Nihon Shoki, which are collectively known as or Japanese chronicles. These chronicles include legends and myths, as well as potential historical facts that have since been exaggerated and/or distorted over time. The Kiki states that Nintoku was born to Nakatsuhime no Mikoto (仲姫命) sometime in 290 AD, and was given the name . According to the Nihon Shoki, he was the fourth son of Emperor Ōjin.
Nintoku is regarded by historians as a ruler during the early 5th century whose existence is generally accepted as fact without attributing all of the things he allegedly accomplished. Nintoku's contemporary title would not have been tennō, as most historians believe this title was not introduced until the reigns of Emperor Tenmu and Empress Jitō. Rather, it was presumably , meaning "the great king who rules all under heaven". Alternatively, Nintoku might have been referred to as or the "Great King of Yamato". 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.
Although the Nihon Shoki states that Nintoku ruled from 313 to 399, research suggests those dates are likely inaccurate. William George Aston notes that if they were factual, Nintoku would be 312 years old in his 78th year of reign assuming that the traditional accounts are correct. Outside of the Kiki, the reign of Emperor Kinmei ( – 571 AD) is the first for which contemporary historiography has been able to assign verifiable dates. The conventionally accepted names and dates of the early Emperors were not confirmed as "traditional" though, until the reign of Emperor Kanmu between 737 and 806 AD.
Hidehiro Okada identifies him with Dei of Wa, a king who preceded the better known Five kings of Wa.
Consorts and children
According to the Nihon Shoki, he was the fourth son of Emperor Ōjin and his mother was Nakatsuhime no Mikoto (仲姫命), a great-granddaughter of Emperor Keikō. He was also the father of Emperors Richū, Hanzei, and Ingyō. His name was .
Empress (Kōgō): , poet and daughter of (first)
• First Son: , later Emperor Richū
•
• Third Son: , later Emperor Hanzei
• Fourth Son: , later Emperor Ingyō
•
Empress (Kōgō): , Emperor Ōjin's daughter (second)
Consort (Hi) : , Morokata no Kimi Ushimoroi's daughter
•
• , married to Emperor Yūryaku
Consort: , daughter of Emperor Ōjin
Consort: , daughter of
Nintokus tomb
Daisen Kofun (the largest tomb in Japan) in Sakai, Osaka, is considered to be his final resting place. The actual site of Nintoku's grave is not known.
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. Built in the middle of the 5th century by an estimated 2,000 men working daily for almost 16 years, the Nintoku tumulus, at 486 meters long and with a mound 35 meters high, is twice as long as the base of the famous Great Pyramid of Pharaoh Khufu (Cheops) in Giza.
The Imperial tomb of Nintoku's consort, Iwa-no hime no Mikoto, is said to be located in Saki-cho, Nara City. Both kofun-type Imperial tombs are characterized by a keyhole-shaped island located within a wide, water-filled moat.
Imperial tombs and mausolea are cultural properties; but they are guarded and administered by the Imperial Household Agency (IHA), which is the government department responsible for all matters relating to the Emperor and his family. According to the IHA, the tombs are more than a mere repository for historical artifacts; they are sacred religious sites. IHA construes each of the Imperial grave sites as sanctuaries for the spirits of the ancestors of the Imperial House.
Nintoku is traditionally venerated at a memorial Shinto shrine (misasagi) at Osaka. The Imperial Household Agency designates this ___location as his mausoleum. It is formally named Mozu no Mimihara no naka no misasagi.
, also known as 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 .