Hirohito, posthumously honored as Emperor Shōwa, was the 124th emperor of Japan, reigning from 1926 until his death in 1989. He was one of the longest-reigning monarchs in the world, with his reign of 62 years being the longest of any Japanese emperor.
Hirohito in 1902 as an infant
Emperor Taishō's four sons in 1921: Hirohito, Takahito, Nobuhito and Yasuhito
The Crown Prince watches a boat race at Oxford University in the UK in 1921.
A crown prince or hereditary prince is the heir apparent to the throne in a royal or imperial monarchy. The female form of the title is crown princess, which may refer either to an heiress apparent or, especially in earlier times, to the wife of the person styled crown prince.
Throngs before the Imperial Palace in Japan awaiting the appearance of Crown Prince Hirohito for the recent proclamation of his official recognition as the heir apparent to the Japanese Imperial Throne – New York Times, 1916.
Al-Muhtadee Billah of Brunei, he holds the title of Pengiran Muda Mahkota (Crown Prince).