the Hubaekje troops faced a heavy defeat at the Battle of Gochang (present-day Andong) and was unable to recover from the loss. Gyeon Hwon attempted to reverse the current by sacking the Goryeo capital of Gaeseong, but his army suffered another defeat in 934. Not only was Hubaekje reeling from military defeats, the kingdom was in internal disarray. In 935, Gyeon Hwon's eldest son Singeom, who had been slighted as heir to the throne in favor of his younger brother Geumgang, overthrew Gyeon Hwon with the aid of his brothers Yanggeom and Yonggeom. Singeom killed Geumgang and confined Gyeon Hwon to Geumsan Temple, but Gyeon Hwon escaped and fled to Goryeo and his old enemy Wang Geon, who welcomed him and provided him with land and slaves. King Gyeongsun of Silla formally surrendered to Goryeo in 935. The following year, at Gyeon Hwon's request, he and Wang Geon led a massive Goryeo army to Hubaekje and the kingdom fell. Gyeon Hwon died the same year of an inflamed tumor. Diplomacy Unlike his rival Gung Ye, Gyeon Hwon was active in diplomacy; he was formally confirmed by the Chinese kingdoms of Wuyue and Later Tang as the legitimate ruler of Hubaekje. In addition, he sought an alliance with the newly formed Liao Dynasty in the north, which was founded by the Khitans, in order to surround Goryeo from both north and south. Gyeon Hwon also sent envoys to Japan during his reign for mainly commercial reasons; the Jeolla region, where Gyeon Hwon began his kingdom, was the center of trade in East Asia during the period and had already served as the base for traders such as Jang Bogo. However, despite all of his diplomatic, military and trade abilities Gyeon Hwon lacked the political astuteness to found a viable state; his Hubaekje government system was not very much different from the one of Silla, which had been proven to be ineffective in centralizing the power of the local landlords and merchants. In the end, Hubaekje was not able to exercise influence over many of its people, paving the way for Goryeo to incorporate the kingdom and unify the Korean peninsula. Wives and children In Samguk Sagi Wives Unnamed primary wife Lady Gobi (고비녀, 古比女) – concubine, mother of his 6th son Children 1st son Gyeon Sin-geom (견신검, 甄神劍; 885–936) 2nd son Gyeon Yang-geom (견양검, 甄良劍; d. 936) 3rd son Gyeon Yong-geom