The constituent members of the Imperial family are: the Empress, the Grand Empress Dowager, the Empress Dowager, Imperial Princes, Consorts of Imperial Princes, Imperial Princesses, Princes, and Consorts of Princes and Princesses (Article 5 of the Imperial House Act).
皇族の構成員は、皇后・太皇太后・皇太后・親王・親王妃・内親王・王(皇族)・王妃(皇族)・女王(皇族)である（皇室典範5条）。