crown prince; Crown Prince's palace
Refers to the heir apparent to the Chrysanthemum Throne, or to his official residence. Used in formal, historical, and news contexts.
The Crown Prince is scheduled to visit abroad next month.
東宮御所は皇居の東側に位置している。
The Crown Prince's Palace is located on the east side of the Imperial Palace.
The prince came of age and became the Crown Prince.