an Entity references as follows:
Prince Jeongyang (Hangul: 정양군, Hanja: 定陽君; d. 23 March 1397), personal name Wang U (Korean: 왕우; Hanja: 王瑀) was the only full older brother of King Gongyang and nobleman in the early Joseon dynasty since his two daughters married both of King Taejo's son and grandson.