"왕세자" (Wangseja) is the Korean term for "crown prince," referring to the heir apparent to the throne in a monarchy. In historical Korean dynasties, such as the Joseon Dynasty, the 왕세자 held a significant role in the royal family, often being groomed for future leadership. The position was typically filled by the eldest son of the reigning king and was crucial for maintaining the royal lineage. The responsibilities of a 왕세자 included learning about governance, military affairs, and Confucian principles, which were essential for ruling effectively. The title also came with certain privileges, such as a dedicated court and the opportunity to participate in state ceremonies. The role of the 왕세자 has evolved over time, especially in modern Korea, where the monarchy no longer holds political power.