Catherine II, known as Catherine the Great, was Empress of Russia from 9 July 1762 until her death in 1796. Before her accession, Catherine had been a royal consort as the wife of Emperor Peter III, whom she overthrew in a coup d'état. Her reign of over 34 years saw an era of prosperity during the Enlightenment in which many new cities, universities and theatres were established; large-scale immigration from the rest of Europe occurred; and the Russian Empire was recognised as a great power of Europe. Born: May 2, 1729 Died: November 17, 1796 In office: July 9, 1762 – November 17, 1796 Wiki link