Crown Prince Hyodŏk

Prince Hyodŏk (Korean: 효덕태자; Hanja: 孝德太子) was a Goryeo royal family member. He was the first son of Daejong and a grandson of Taejo, the dynasty's founder.^[1] He was the oldest brother of King Seongjong, Queen Heonae, and Queen Heonjeong.^{[citation needed]} Since their parents had died when he was young, he was raised by his paternal grandmother, Queen Sinjeong alongside his siblings.^[2] Therefore, it was speculated that he lived in Hwangju where Queen Sinjeong came from.^{[citation needed]} Also, since King Gyeongjong's throne was succeeded by his younger brother and not him, so it might be that he died at a young age before the time of throne's ascension.^[3]

Prince Hyodŏk
Born	Unknown Kaegyŏng, Goryeo
Died	Unknown Kaegyŏng, Goryeo
House	House of Wang
Father	Daejong
Mother	Queen Seonui
Religion	Buddhism
Korean name
Hangul	효덕태자
Hanja	孝德太子
RR	Hyodeok taeja
MR	Hyodŏk t'aeja