Records of heads of state
Officially, the current Emperor of Japan, Akihito is the 125th in line from the first emperor Jimmu, who is variously believed to have reigned in the 1st or 7th century BC. The earliest documentary evidence is only for the 29th emperor, Kinmei (AD 509–571); however, this is sufficient such that even the most conservative of estimates still places the Japanese imperial family as among the oldest lines in the world today.
Emperor Buretsu
Buretsu was a son of Emperor Ninken and his mother is "Kasuga no Ōiratsume no Kōgō" (春日大郎皇后). His name was Ohatsuse no Wakasazaki no Mikoto (小泊瀬稚鷦鷯尊). He had no children.If Emperor Keitai began a new dynasty as some historians believe, then Buretsu is the last emperor of the first recorded dynasty of Japan.