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UNSPECIFIED - JANUARY 01: Portrait in 1943 of King SIMEON II, aged 6. The Czar of Bulgaria from 1943 to 1946, he was exiled in 1946 after the abolition of the monarchy and the rise of communism. (Photo by Keystone-France/Gamma-Keystone via Getty Images)

UNSPECIFIED - JANUARY 01:  Portrait in 1943 of King SIMEON II, aged 6. The Czar of Bulgaria from 1943 to 1946, he was exiled in 1946 after the abolition of the monarchy and the rise of communism.  (Photo by Keystone-France/Gamma-Keystone via Getty Images)