Soseono

Soseono
Hangul	소서노
Hanja
Revised Romanization	So Seono
McCune–Reischauer	So Sŏno

Soseono (or So Seo-no) (hanja: ) (77 - 6 BC) was the wife of Jumong, remembered as the queen consort of Goguryeo. She was a key figure in the founding of both Goguryeo and Baekje. She was the mother of Biryu and Onjo of Baekje.

A traditional account from the Annals of Baekje section in the Samguk Sagi, states that Soseono was the daughter of Yeon Ta-bal, a wealthy influential figure in Jolbon and married to Jumong. However, the same source officially states that the chief of Habaek tribe gave his daughter to Jumong, who had fled Eastern Buyeo with his followers, in marriage. According to the Samguk Sagi, Jumong was Lady Soseono's second husband. Her first husband was Wutae.

After Jumong's son, Yuri of Goguryeo, and Yuri's mother, Ye Soya, who were both presumed to have died, returned to Goguryeo, Yuri became the crown prince of Goguryeo. Soseono left Goguryeo, taking her two sons Biryu and Onjo south to found their own kingdom, Baekje.

Soseono died in 6 BC at the age of 61 after her second son Onjo became the first king of Baekje.

...
Wikipedia