This purple dragon robe is considered to have belonged to Prince Gu, the second son of Imperial Prince Yeong. It was a regular garment for a crown prince or grandson prince regent before coming-of-age. Its name, jajeokpo, is derived from the purple color of the robe and the round insignias carrying a dragon design. The four round insignias with four-clawed dragon in gold-foil printing are attached on the shoulders, chest, and back. This coat was worn with a jade belt, black boots, and hat of the soon-to-be crown prince before his coming-of-age ceremony and worn with the king’s winged official crown after the ceremony.