Jeongjong, 10th monarch of Goryeo

Jeongjong, personal name Wang Hyŏng, was the 10th king of Korea's Goryeo dynasty. He was the second son of King Hyeonjong, and the younger brother of King Deokjong. At the age of four in 1022, he was made Naesaryeong, a position of high rank, and designated the Prince of Pyongyang.