Joanna Elisabeth of Holstein-Gottorp was a member of the German House of Holstein-Gottorp, a princess consort of Anhalt-Zerbst by marriage, and the regent of Anhalt-Zerbst from 1747 to 1752 on behalf of her minor son, Frederick Augustus. She is best known as the mother of Empress Catherine the Great of Russia.

Catherine II, most commonly known as Catherine the Great, was the reigning empress of Russia from 1762 to 1796. She came to power after overthrowing her husband, Peter III. Under her long reign, inspired by the ideas of the Enlightenment, Russia experienced a renaissance of culture and sciences, which led to the founding of many new cities, universities, and theatres, along with a large-scale immigration from the rest of Europe and with the recognition of Russia as one of the great powers of Europe.