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Wang Geon (King Taejo of Goryeo)
r. 918–943; reunified Korea 936· Person· Rulers & states
Well documentedSolid records, physical evidence or scientific consensus.
A general from a Songak (Kaesong) trading family who founded Goryeo in 918 and reunified the peninsula in 936.
See it on the Korean History map →What happened
Wang Geon (왕건, 877–943), known after death as King Taejo, came from a family grown rich on sea trade around Songak. Serving Gung Ye, he led naval campaigns against Later Baekje, taking Naju in 903, and rose to chief minister. In 918 generals overthrew Gung Ye and made him king. He won over regional lords by marrying 29 wives from their families and granting many of them the royal surname, took Silla's peaceful surrender in 935 and destroyed Later Baekje in 936.
Why it matters
His mix of conquest, marriage ties and generous terms for rivals turned a divided peninsula into one lasting kingdom.
Legacy and how we know
The Goryeosa records his reign and his Ten Injunctions to his heirs. A life-size bronze statue of him was found near his tomb in Kaesong in 1992.
Still debated
Some historians think the Ten Injunctions, including a warning against men from the old Baekje region, were edited or even forged in the 11th century.
Connections (3)
▸Gung Ye, founder of Taebong was overthrown by Wang Geon (King Taejo of Goryeo)Well documented
The connection
Wang Geon served Gung Ye from 896, won key naval victories and became chief minister. As Gung Ye grew suspicious and cruel, four generals urged Wang Geon to take power. In 918 they proclaimed him king; Gung Ye fled and, by the official account, was killed by local people.
When and how
Summer 918, at Cheorwon; the generals Hong Yu, Bae Hyeon-gyeong, Sin Sung-gyeom and Bok Ji-gyeom.
How we know
The Samguk sagi and Goryeosa both tell the story in detail, but both come from the winning side.
Debates and open questions
Whether Gung Ye was truly a tyrant or was blackened to justify a coup, and how much Wang Geon himself planned it, are debated.
▸Gyeon Hwon, founder of Later Baekje finally surrendered to Wang Geon (King Taejo of Goryeo)Well documented
The connection
Gyeon Hwon and Wang Geon fought for 18 years: Gyeon Hwon won at Gongsan in 927, Wang Geon at Gochang in 930. In 935 Gyeon Hwon's son deposed him; he escaped to Goryeo, where Wang Geon received him with honors and lands. In 936 he rode with the Goryeo army that destroyed his son's kingdom.
When and how
935–936; he fled from Geumsansa temple in Gimje to Goryeo, and the final battle was at Illicheon, near today's Gumi.
How we know
The Samguk sagi and Goryeosa both record his flight, his welcome and his part in the 936 campaign.
Debates and open questions
His motives, revenge on his son or a bargain for his own safety, are unrecorded; he died within months, by tradition of grief and illness.
▸Wang Geon (King Taejo of Goryeo) founded GoryeoWell documented
The connection
Made king in 918, Wang Geon named his state Goryeo and in 919 moved the capital to his home base, Songak, renamed Gaegyeong (Kaesong). He bound regional lords to the throne through 29 marriages, grants of the royal surname and land, and left Ten Injunctions telling his heirs to honor Buddhism and keep pushing north.
When and how
918–943, first at Cheorwon, then at Gaegyeong (Kaesong), now in North Korea.
How we know
The Goryeosa records his reign in detail; his tomb, Hyeolleung, stands near Kaesong.
Debates and open questions
His many marriages left princes by different mothers, and succession fights followed his death in 943; the Ten Injunctions' authenticity is also debated.