According to the Samguk Sagi, it was established when the Buyeo king Hae Buru moved the capital eastward by the sea.

[1] Hae Buru named the child Geumwa, meaning golden frog, and later made him crown prince.

At the Ubal river, near southern of Taebaek Mountain, Geumwa met Lady Yuhwa, who was the disowned daughter Habaek, the god of the Amnok River or, according to an alternative interpretation, the sun god Haebak.

Dongbuyeo was briefly revived by a small state established around 285 by refugees of Buyeo.

Although the chronology is inconsistent with the Samguk Sagi, one legend says Wutae, the father of the Baekje's founder and 1st ruler, Onjo, was a son of Hae Buru.