'Emperor Itoku' (懿徳天皇 ''Itoku Tennō'') was the fourth
emperor of
Japan to appear on the traditional
list of emperors. No firm date can be assigned to this emperor and he is regarded by historians as a "legendary emperor". He was the third one of eight emperors without legend. In ''
Kojiki'' and ''
Nihonshoki'' only his name and genealogy were recorded. His historical existence were believed traditionally and a tomb was attributed to him, but no contemporary studies support the view that such a person existed.
His
posthumous name literally means "benign virtue".
References
★ ''Nihongi: Chronicles of Japan from the Earliest Times to A.D. 697'', translated by W.G. Aston (Tuttle Co, 1998), Volume 1 pp. 142 - 143