<P> In 1910 the last emperor of Korea, Sunjong, lost his throne when the country was annexed by Japan . However, the Korean royal family was mediatised as a puppet family within the Japanese imperial family . Many of the Korean royals were forcibly re-educated in Japan and forced to marry Japanese royalty and aristocrats to meld the ruling families of the two empires . With the abolition of the Japanese aristocracy and cadet branches of the imperial family, the Korean royals officially lost their remaining status . </P> <P> The monarchy of Portugal was also overthrown in 1910 (5 October), two years after the assassination of King Carlos I, ending the reign of Manuel II, who died in exile in England (1932), without issue . </P> <P> The ancient monarchy of China ceased to exist in 1912 after the revolution of Sun Yat - sen overthrew Emperor Puyi . General Yuan Shikai, then provisional president, unsuccessfully tried to make himself a monarch in 1915 . </P> <P> World War I led to perhaps the greatest spate of abolition of monarchies in history . The conditions inside Russia and the poor performance in the war gave rise to a revolution which toppled the entire institution of the monarchy, followed by a second revolution against that government in October of the same year that executed Emperor Nicholas II and implemented a Marxist - Leninist government . The defeated German, Austro - Hungarian and Ottoman empires saw the abolition of their monarchies in the close aftermath of the war, ending the reigns of Wilhelm II, Charles I and Mehmed VI respectively . The monarchs of the constituent states within the German Empire, most importantly Ludwig III of Bavaria, Frederick Augustus III of Saxony and Wilhelm II of Württemberg, soon abdicated . During the war, monarchies were planned for the Grand Duchy of Finland (to have a Finnish King), and for Lithuania (Mindaugas II of Lithuania), with a protectorate - like dependency of Germany . Both intended kings renounced their thrones after Germany's defeat in November 1918 . King Nicholas I of Montenegro lost his throne when the country became a part of Yugoslavia in 1918 . </P>

The uprising that brought china's monarchy to an end