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 Duchess Olga Feodorovna of Russia, born Princess Cäcilie of Baden, was the youngest daughter of Grand Duke Leopold of Baden and Sophie Wilhelmine of Sweden.