Columbia subject headings:
Akihito, Emperor Emeritus of Japan, 1933-
Emperors--Legal status, laws, etc.--Japan--History--21st century.
Emperors--Succession--Japan--History--21st century.
Japan--History--Heisei period, 1989-2019.
Michiko, Empress Emerita, consort of Akihito, Emperor Emeritus of Japan, 1934-
Harvard subject headings:
Princeton subject headings:
Akihito, Emperor Emeritus of Japan, 1933-
Emperors--Legal status, laws, etc.--Japan.
Emperors--Succession--Japan.
Japan--History--Heisei period, 1989-
Japan--History--Shōwa period, 1926-1989.
Michiko, Empress Emerita, consort of Akihito, Emperor Emeritus of Japan, 1934-