Prince Constantine Constantinovich of Russia, nicknamed Kostya by the family, was the third son and fourth child of Grand Duke Constantine Constantinovich of Russia by his wife Grand Duchess Elizabeth Mavrikievna of Russia. Wikipedia
Born: January 1, 1891, Saint Petersburg, Russia
Died: July 18, 1918 (age 27 years), Alapayevsk, Russia
Great-grandparents: Nicholas I of Russia, Alexandra Feodorovna, Duchess Amelia of Württemberg, and more
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