5 trends tracked about this subject — the full history, oldest to newest below.
Japan has formally revised its imperial succession laws, firmly enshrining a male-only requirement for the throne despite a shrinking royal family.
Japan's parliament has enacted revisions to the Imperial House Law to secure the monarchy's future while maintaining a strict ban on female emperors.
Japan is grappling with a royal succession crisis as current laws block women from the throne while the pool of eligible heirs dwindles.
Norway’s royal family faces legal fallout as stepson of crown prince sentenced for rape
Norway’s royal family faces unprecedented legal scrutiny as a high-profile trial nears conclusion