Peter III of Russia Peter III of Russia Peter III ( – ) (, "Pyotr III Fyodorovich") was Emperor of Russia for six months in 1762. He was born in Kiel as Karl Peter Ulrich von Schleswig-Holstein-Gottorp, the only child of Charles Frederick, Duke of Holstein-Gottorp (the son of Hedvig Sophia of Sweden, sister of Charles XII), and Anna Petrovna (the elder surviving daughter of Peter the Great). The German Peter could hardly speak Russian and pursued a strongly pro-Prussian policy, which made him an unpopular leader. He was deposed and possibly assassinated as a result of a conspiracy led by his German wife,
Russia this conflict Russia annexed East Prussia for a while and even took Berlin. However, upon Elisabeth's death, all these conquests were returned to the Kingdom of Prussia by pro-Prussian Peter III of Russia. Catherine II ("the Great"), who ruled in 1762–96, presided over the Age of Russian Enlightenment. She extended Russian political control over the Polish-Lithuanian Commonwealth and incorporated most of its territories into Russia during the Partitions of Poland, pushing the Russian frontier westward into Central Europe. In the south, after successful Russo-Turkish Wars against Ottoman Turkey, Catherine advanced Russia's boundary to the Black Sea, defeating the Crimean Khanate.