| Prince Wonjang | |
| Prince of Goryeo | |
| Spouse: | Princess Heungbang |
| Issue: | Prince Heungbang Lady Daemyeong |
| Royal House: | House of Wang |
| Father: | Taejo of Goryeo |
| Mother: | Queen Jeongdeok of the Chŏngju Yu clan |
| Religion: | Buddhism |
Prince Wonjang was a Goryeo Royal Prince as the third son of King Taejo and Queen Jeongdeok[1] who married his half sister, Princess Heungbang[2] and had a son[3] and a daughter who would become King Gyeongjong's 5th wife.[4]
• Prince Wonjang on Encykorea .