Emperor Chūai

was the 14th emperor of Japan, according to the traditional order of succession. Historians consider Emperor Chūai to be a legendary person, and the name Chūai"-tennō" was created for him posthumously by later generations.
No certain dates can be assigned to this emperor's life or reign. The conventionally accepted names and sequence of the early emperors were not to be confirmed as "traditional" until the reign of Emperor Kammu, who was the 50th monarch of the Yamato dynasty.
Traditional history.
Chūai is almost certainly a legend; but the "Kojiki" and "Nihonshoki" record his name. He was a grandson of Emperor Keikō.
Chūai's wife is known as Empress Jingū. Her son would become known as Emperor Ōjin.
Events of Chūai's life.
The limited information about Chūai does not imply that no such person ever existed. Very little information is available for study prior to the reign of the 29th monarch, Emperor Kimmei.
After his death.
This emperor's official name after his death (his posthumous name) was regularized many centuries after the lifetime which was ascribed to Chūai.
The actual site of his grave is not known. According to the Imperial Household Agency, this emperor is venerated at a memorial Shinto shrine ("misasagi") at Fujiidera of Osaka Prefecture.