Grand Duchess Elizabeth Feodorovna of Russia was a German Hessian and Rhenish princess of the House of Hesse-Darmstadt, and the wife of Grand Duke Sergei Alexandrovich of Russia, the fifth son of Emperor Alexander II of Russia and Princess Marie of Hesse and by Rhine.

Grand Duke Sergei Alexandrovich of Russia was the fifth son and seventh child of Emperor Alexander II of Russia. He was an influential figure during the reigns of his brother Emperor Alexander III of Russia and his nephew Emperor Nicholas II, who was also his brother-in-law through Sergei's marriage to Elisabeth, the sister of Empress Alexandra.