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PoliticalJapan·Unpinned6 Sept 2026 · 1d ago

Prince Hisahito turns 20 amid debate over Japan's male-only succession rules

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Prince Hisahito, the 20-year-old nephew of Emperor Naruhito and second in line to the Chrysanthemum Throne, recently reached adulthood amidst ongoing national debate regarding Japan’s male-only imperial succession rules. The government recently enacted revisions to the 19th-century Imperial House Law, which permits the adoption of male offspring from distant former royal families but maintains the exclusion of women like the Emperor's daughter, Princess Aiko, from the throne. While Hisahito pursues biology studies at the University of Tsukuba and has begun performing official duties, the legal changes sparked public criticism from those who viewed them as a deliberate attempt to preserve a patriarchal system at the expense of popular figures like Princess Aiko.

Consequences

The reinforced succession laws will likely subject Prince Hisahito and his future spouse to significant pressure to produce a male heir to ensure the continuation of the imperial line. Furthermore, the exclusion of female royals from succession will continue to fuel public debate over the potential for anachronistic and sexist policies within the Japanese imperial institution.

Sources

ABC News
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