Gyeon Hwon chose his fourth son as heir — his eldest son destroyed the kingdom

Gyeon Hwon founded Later Baekje in 892 and built it into one of the Later Three Kingdoms of Korea. He was a capable military leader who expanded his territory, but he made a disastrous decision about the succession. He favoured his fourth son Geumgang over his eldest son Sin-geom, signalling that Geumgang would inherit the throne.

In 935, Sin-geom, aided by his brothers Yang-geom and Yong-geom and the general Neunghwan, staged a coup. They imprisoned Gyeon Hwon in Geumsansa temple. Sin-geom killed Geumgang and declared himself king.

Gyeon Hwon escaped confinement and fled to the court of his old enemy, Wang Geon of Goryeo. Wang Geon welcomed him and granted him land. The following year, Gyeon Hwon led Goryeo's army against his own kingdom. At the Battle of Illicheon, Goryeo crushed the Later Baekje forces. Later Baekje fell in 936, after just 44 years.

Sin-geom surrendered. His brothers Yang-geom and Yong-geom were executed. Sin-geom was given a title but was killed shortly after. Gyeon Hwon succumbed to illness the same year.