Gyeon Hwon vs Imad ad-Din Zengi

Gyeon Hwon, a former Silla general, led a rebellion and established the kingdom of Later Baekje in southwestern Korea. He declared himself king, reviving the name of the ancient Baekje kingdom and initiating the Later Three Kingdoms period.

Gyeon Hwon's forces were defeated by the Goryeo army under King Taejo at Gochang. This battle marked a turning point in the Later Three Kingdoms period, weakening Later Baekje and strengthening Goryeo's position.

Gyeon Hwon was deposed by his son, Gyeon Singeom, who seized the throne in a coup. The rebellion was fueled by Gyeon Hwon's favoritism toward his youngest son, leading to internal strife within Later Baekje.

After being deposed, Gyeon Hwon defected to Goryeo and was welcomed by King Taejo. He provided military intelligence and assistance to Goryeo, contributing to the eventual conquest of Later Baekje in 936.

Gyeon Hwon died in Goryeo shortly after the fall of Later Baekje. His death marked the end of the Later Three Kingdoms period and the unification of Korea under Goryeo.

Imad ad-Din Zengi besieged Damascus, attempting to expand his control over Syria. The siege failed due to strong defenses and the intervention of the Burid dynasty, preventing Zengi from unifying Muslim Syria under his rule.

Imad ad-Din Zengi, atabeg of Mosul, besieged and captured the Crusader city of Edessa. This was the first major Crusader territory to fall to Muslim forces, triggering the Second Crusade and establishing Zengi as a leading Muslim commander.

Imad ad-Din Zengi was assassinated by a Frankish slave in his sleep while besieging the fortress of Qal'at Ja'bar. His death fragmented his territories, which were divided between his sons Nur ad-Din and Saif ad-Din, but his legacy continued through Nur ad-Din's later successes.