Wang Seok

Crown Prince Jeongseong (ca. 1370–1394) or known before as Prince Jeongseong, was the first son of King Gongyang and Consort Sun who would eventually become the last Crown Prince of the Goryeo dynasty. After Yi Seonggye established the new dynasty, he was deposed from his throne along with his parents and got assassinated. His birth name was Wang Dan , but later changed to Wang Seok whom he was better known as.

Biography Early life Born as Wang Dan , he was the only son of Wang Yo, Prince Jeongchang and Lady No. Then, he changed his name into "Seok" and given royal title as Prince Jeongseong in 1388. At this time, Wang was reprimanded for not meeting the deadline after sending them to the Ming Dynasty, but there was no way for him to respond. Meanwhile, merchants who traded sheep were participating in the envoy to Ipjo and the ambassadors, such as Heo Eung filed an appeal in September, insisted that the merchants be excluded from the party.

From September until December, Wang, along with Seol Jang-su and others, were left in Ming and went back to Goryeo. On 10 March 1392, while Yi Hyeon already arrived in Goryeo and reported the Crown Prince's expected return date, Wang then returned safely on the 26th and greeted the new year, and receiving a golden robes . Yi, who was now the new King of the new Joseon dynasty, reported this news to the Ming and after received this news, the Ming finally understood that Wang didn't return safely to Goryeo and instead got killed.

Family Father: King Gongyang of Goryeo (고려 공양왕; 9 March 1345 – 17 May 1394) Mother: Consort Sun of the Gyoha No clan (순비 노씨; 1343–1394) Younger sister: Princess Suknyeong (숙녕궁주; 1364–?) Younger sister: Princess Jeongsin (정신궁주; 1366–1421) Younger sister: Princess Gyeonghwa (경화궁주; 1368–?) Wife: Crown Princess Consort of the Incheon Yi clan (왕세자빈 인천 이씨; 1370–?) – No issue.