officer. During the latter days of the declining Goryeo dynasty, Jeongjong followed his father to various battlefronts and fought at his side. When his father took the throne in 1392, he became a prince.

Taejo had two wives -- the first one, who gave birth to six sons (including Jeongjong), died before he was crowned; the second wife was Lady Gang, with whom he had two sons. The king favored his youngest son, whose mother was Lady Gang. Chief State Councillor