Grand Duke George Mikhailovich of Russia was a Grand Duke of Russia, first cousin of Emperor Alexander III of Russia and a General in the Russian army. Born in Tbilisi while his father was the Governor-General of Russian provinces of Transcaucasia, he was the second surviving son of Grand Duke Michael Nicolaievich of Russia and Princess Cecilie of Baden. His paternal grandparents were Emperor Nicholas I of Russia and Princess Charlotte of Prussia. His maternal grandparents were Grand Duke Leopold I of Baden and Princess Sophie of Sweden.

Grand Duke Michael Nikolaevich of Russia was the fourth son and seventh child of Emperor Nicholas I of Russia and Charlotte of Prussia. He was the first owner of the New Michael Palace on the Palace Quay in Saint Petersburg.