• Joseon Dynasty, before 1581
• Woohak Cultural Foundation
• Treasure

A placenta jar was a vessel used by the royal court to hold the placenta of a newborn prince or princess. A stone tablet, inscribed with the child’s name and date of birth, was buried alongside the jar at an auspicious site. These jars embodied the royal family's wishes for the health and good fortune of their children, as well as for the peace and prosperity of the nation. As such, a placenta jar symbolized the continuity of the royal lineage.