Emperor Ankō (安康天皇 Ankō Tennō) was the 20th 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 mid-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. ...
However, the number of his successors between that arrival and the first truly historical emperors puts that arrival at some time in the first century, coinciding with the Yayoi Period, and all dates prior to AD 500 should be approached with caution.
Shirakawa becomes the first cloistered emperor when he 'retires' to a monastery in 1086, but in fact continues to exert considerable influence over his successor (all cloistered emperors below are shown in red, while their 'influenced' successors are shown with a shaded background).
Japanese emperors were more often known by their personal names even after death than those which they were given upon their deaths, so official names are shown here in parenthesis.