However, since this would make him rule until at least the age of 110, modern historians commonly assume that Biryu was in fact the son or grandson of Saban's younger brother.
[1] After the preceding king Bunseo was assassinated in the 7th year of his reign in 304 by Chinese agents, Biryu ascended to the throne because Bunseo's sons were deemed too young to rule.
This appears to have been part of a power struggle between the two branches of the Baekje royal family, the descendants of the 5th king Chogo (Biryu's ancestor) and that of the 8th king Goi.
The Samguk sagi records that "his character was generous and benevolent, and he was powerful and skilled with a bow.
Japanese historians suspect Biryu, like Saban, as the progenitor of certain aristocratic clans of Yamato period Japan.