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.

Alexander III was Emperor of Russia, King of Congress Poland and Grand Duke of Finland from 13 March 1881 until his death in 1894. He was highly reactionary in domestic affairs and reversed some of the liberal reforms of his father, Alexander II. This policy is known in Russia as "counter-reforms". Under the influence of Konstantin Pobedonostsev (1827–1907), he opposed any socio-economic moves that limited his autocratic rule.