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Japan enshrines male-only imperial succession law

newsJul 17, 202611175

Japan’s parliament enacted a revision to the 19th-century Imperial House Law that insists only men in the paternal line can become emperor. The measure allows adoption of distant male relatives to father future heirs and lets princesses keep their royal status after marrying commoners. Emperor Naruhito’s 24-year-old daughter Princess Aiko remains ineligible because she is female; under the law the line moves instead to Naruhito’s younger brother and then to his 19-year-old nephew Prince Hisahito. Only five of the 16 adult members of the imperial family are men and there are currently no children in the household. Prime Minister Sanae Takaichi and other conservatives argued the male bloodline is the source of the emperor’s authority, while Nagoya University expert Hideya Kawanishi called the change a declaration to prevent female monarchs. The paternal-line requirement was first written into the 1890 Imperial House Law and critics warn the new rules could accelerate the shrinking and aging of the imperial family.

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