There have been several dynasts of Russian Imperial House whose name is George (Yurij):

• Grand Duke Yurij Mikhailovich of Russia (1863-1919), grandson of Nicholas I and son of Grand duke Michael Nicolaievich of Russia.
• Grand Duke Yurij Alexandrovich of Russia, younger brother of Nicholas II

Currently, also a German-born prince, son of Maria Vladimirovna of Russia, uses the designation Grand Duke George Mikhailovitch of Russia. Yurij Mikhailovich, George Mikhailovich (Юрий Михайлович), born 11 August 1863, died 1919, was a cousin of Emperor Nicholas II of Russia and a General in Russian army. ... H.I.H. Grand Duchess Maria Vladimirovna, Titular Empress and Autocrat of all the Russias Maria Vladimirovna of Russia, Maria Wladimirovna Romanov (Мари́я Влади́мировна Рома́нова) (born December 23, 1953) has claimed to be the Head of the Imperial Family of Russia and Titular Empress and Autocrat of all the Russias... H.I.H. George Mikhailovitch, Tsarevitch and Grand Duke of Russia, with his mother, 1992 George Mikhailovich of Russia, Georgiya Mikhailovich Romanov (Георгия Михаилович Романов) (born June 22, 1982) is the Heir apparent to the disputed Headship of the Imperial Family of Russia, and claims the titles Tsarevich and Grand Duke of Russia. ...