Grand Prince Hoean son of Taejo of Joseon (1364–1421) Parents Sinui Taejo of Joseon Children Lee Maeng-jung Siblings Princess Soucksin Taejong of Joseon Princess Kyungshin Grand Prince Deokan Princess Gyeongsun Grand Prince Ikan Grand Prince Jinan Princess Uiryeong Jeongjong of Joseon Grand Prince Uian Grand Prince Muan Princess Kyungsun Lee Deok-geun