Emperor Seinei (清寧天皇 Seinei Tennō) was the 22nd imperial ruler of Japan, according to the traditional order of succession. No firm dates can be assigned to this emperor or to his reign, but he is believed to have ruled the country during the late 5th century CE. His Imperial Majesty, Emperor Akihito of Japan The Emperor of Japan (天皇, tennō) is Japans titular head of state and the head of the Japanese imperial family. ... // Events Romulus Augustus, Last Western Roman Emperor Rome sacked by Visigoths in 410. ...
His tomb was made in Kawachi province, which is today in the eastern Osaka prefecture. Åsaka Prefecture (大éªåº Åsaka-fu) is part of the Kinki region on Honshu island, Japan. ...
Cloistered emperors have been known to come into conflict with the reigning emperor from time to time; a notable example is the Hōgen Rebellion of 1156, in which former Emperor Sutoku attempted to seize power from the then current Emperor Go-Shirakawa, both of whom were supported by different clans of samurai.
The acceptable source of imperial wives, brides for the emperor and crown prince, were even legislated into the Meiji-era imperial house laws (1889), which stipulated that daughters of Sekke (the five main branches of the higher Fujiwara) and daughters of the imperial clan itself were primarily acceptable brides.
Emperor Go-Saga even decreed an official alternation between heirs of his two sons, which system continued for a couple of centuries (leading finally to shōgun-induced (or utilized) strife between these two branches, the "southern" and "northern" emperors).