Russian Empire
The Russian Empire, also known as Imperial Russia or simply Russia, was an empire that existed across Eurasia and North America from 1721, following the end of the Great Northern War, until the Republic was proclaimed by the Provisional Government that took power after the February Revolution of 1917.
Charles XII of Sweden
The Swedish defeat at Poltava in 1709 marks the downfall of the Swedish Empire, as well as the founding of the Russian Empire.