A popular princess drives support for having a female Japanese Emperor. But the country's first female prime minister opposes it.

Japan may have its first ever female prime minister, but her government’s attempts to avoid a royal succession crisis are making the chances of a woman taking the imperial throne…

A law set to pass Friday by Japan’s parliament could doom its 1,500-year-old hereditary institution by insisting that only men can be emperor, sparking worry about the shrinking,…