Japan's Imperial Family has enacted changes to its succession rules in response to a dwindling number of heirs, while maintaining a long-standing prohibition on female empresses. The modifications, passed into law last week, aim to address concerns about the future of the world's oldest continuous hereditary monarchy.
Under the new legislation, the Imperial Family can adopt distant male relatives who are over the age of 15. This move seeks to bolster the line of succession, which currently faces a shortage of eligible male heirs. The amendment also permits female members of the royal family to retain their titles and continue their royal duties even if they marry commoners. This represents a notable shift from previous practices, such as that of Princess Mako.
Succession Concerns
Emperor Naruhito, 66, and Empress Masako, 62, have one daughter, Princess Aiko, who was born in 2001. In recent generations, female births have outnumbered male births within the family, leaving only three male heirs. One of these heirs is over 90 years old, and seven family members are currently over 60. Emperor Naruhito's younger brother, Prince Fumihito, 60, is first in line to the throne, followed by his son Prince Hisahito, 19, and then the Emperor's uncle, Prince Hitachi, who turned 90 in November.
The new bill, which will take effect after legal procedures are completed, allows for the adoption of male descendants from 11 former imperial branches that were previously removed after World War II. This legislation marks the first significant alteration to the Imperial House Law since 1949, representing the most substantial overhaul of the imperial system in decades.
Changes for Female Members
The decision to allow female members to keep their titles after marrying commoners contrasts with the experience of Princess Mako, Emperor Naruhito's niece. In October 2021, Princess Mako, 34, renounced her royal status to marry Kei Komuro, a lawyer. She moved to New York with her husband, foregoing a reported £1 million payment she was entitled to upon leaving the imperial family. Princess Aiko, who lives with her parents at The Imperial Palace in Tokyo, works for the Japanese Red Cross Society and performs royal duties. However, the law forbidding women from ascending the throne remains in place, meaning she cannot become empress.
Historical Context
The Japanese imperial family's lineage is traceable for two millennia, with tradition emphasizing a male line of succession. Mythology recognized by the Imperial House posits Emperor Jimmu, a descendant of a sun goddess, as the first emperor. While European monarchies have largely adapted to female rulers, a conservative faction in Japan, including members of the ruling Liberal Democratic Party, asserts that allowing women to rule would break thousands of years of tradition.