Japan parliament amends imperial succession law, retains ban on female emperor

Japan’s Diet passed a new imperial succession law on Friday that expands eligibility for male relatives while preserving the male‑only throne. The bill permits male members of the extended imperial family—such as princes from distant branches—to re‑enter the line of succession, and it allows women who marry commoners to keep their royal status instead of automatically losing it. The legislation does not lift the constitutional prohibition against a female emperor, maintaining the current rule that only men may ascend the Chrysanthemum Throne.

The changes come amid growing public debate over the monarchy’s future. Recent opinion polls show broad support for allowing a woman to become emperor, yet lawmakers have opted to retain the male‑only provision. The new law also addresses the shrinking pool of eligible heirs, a concern that has prompted calls for reform since the late‑1990s when the imperial family’s numbers began to decline.

While the reform broadens the imperial family’s composition, it leaves the fundamental gender restriction unchanged. The decision reflects a cautious approach to constitutional amendment, suggesting that any shift toward a female emperor would require a more extensive legal overhaul and further public endorsement.