Who married Catherine II of Russia?

Catherine II (born Princess Sophia Augusta Frederica of Anhalt-Zerbst; 2 May 1729 – 17 November 1796), commonly known as Catherine the Great, was the reigning Empress of Russia from 1762 to 1796. She came to power after a coup d'etat against her husband, Peter III. Her long reign helped Russia thrive under a golden age during the Enlightenment. This renaissance led to the founding of many new cities, universities, and theatres, along with large-scale immigration from the rest of Europe and the recognition of Russia as one of the great powers of Europe.

After overthrowing and possibly assassinating her husband and her subsequent rule of the Russian Empire, Catherine often relied on noble favourites such as Count Grigory Orlov and Grigory Potemkin. Assisted by highly successful generals such as Alexander Suvorov and Pyotr Rumyantsev and admirals such as Samuel Greig and Fyodor Ushakov, she governed at a time when the Russian Empire was expanding rapidly by conquest and diplomacy. In the west, she installed her former lover to the throne of Poland, which was eventually partitioned. In the south, the Crimean Khanate was annexed following victories over the Bar Confederation and the Ottoman Empire in the Russo-Turkish War. With the support of Great Britain, Russia colonised the territories of New Russia along the coasts of the Black and Azov seas. In the east, Russians became the first Europeans to colonise Alaska, establishing Russian America.

Many cities and towns were founded on Catherine's orders in the newly conquered lands, most notably Yekaterinoslav, Kherson, Nikolayev, and Sevastopol. An admirer of Peter the Great, Catherine continued to modernise Russia along Western European culture. However, military conscription and the economy continued to depend on serfdom, and the increasing demands of the state and of private landowners intensified the exploitation of serf labour. This was one of the chief reasons behind rebellions, including Pugachev's Rebellion of Cossacks, nomads, peoples of the Volga, and peasants.

The Manifesto on Freedom of the Nobility, issued during the short reign of Peter III and confirmed by Catherine, freed Russian nobles from compulsory military or state service. The construction of many mansions of the nobility in the classical style endorsed by the empress changed the face of the country. She is often included in the ranks of the enlightened despots. Catherine presided over the age of the Russian Enlightenment and established the Smolny Institute of Noble Maidens, the first state-financed higher education institution for women in Europe.

Prince Grigory Aleksandrovich Potemkin-Tauricheski (11 October [O.S. 30 September] 1739 – 16 October [O.S. 5 October] 1791) was a Russian military leader, statesman, nobleman, and favourite of Catherine the Great. He died during negotiations over the Treaty of Iași, which ended a war with the Ottoman Empire that he had overseen.

Potemkin was born into a family of middle-income landowners of Russian nobility. He first attracted Catherine's favor for helping in her 1762 coup, then distinguished himself as a military commander in the Russo-Turkish War (1768–1774). He became Catherine's lover, favorite and possibly her consort. After their passion cooled, he remained her lifelong friend and favored statesman. Catherine obtained for him the title of Prince of the Holy Roman Empire and gave him the title of Prince of the Russian Empire among many others: he was both a Grand Admiral and the head of all of Russia's land and irregular forces. Potemkin's achievements include the peaceful annexation of the Crimea (1783) and the successful second Russo-Turkish War (1787–1792), during which the armed forces under his command besieged Ochakov.

In 1775, Potemkin became the governor-general of Russia's new southern provinces. An absolute ruler, he worked to colonize the wild steppes, controversially dealing firmly with the Cossacks who lived there. He founded the towns of Kherson, Nikolayev, Sevastopol, and Yekaterinoslav. Ports in the region became bases for his new Black Sea Fleet.

His rule in the south is associated with the (probably mythical) "Potemkin village", a ruse involving the construction of painted façades to mimic real villages, full of happy, well-fed people, for visiting officials to see. Potemkin was known for his love of women, gambling and material wealth. He oversaw the construction of many historically significant buildings, including the Tauride Palace in Saint Petersburg.

Peter III Fyodorovich (Russian: Пётр III Фёдорович, romanized: Pyotr III Fyodorovich; 21 February [O.S. 10 February] 1728 – 17 July [O.S. 6 July] 1762) was Emperor of Russia from 5 January 1762 until 9 July of the same year, when he was overthrown by his wife, Catherine II (the Great). He was born in the German city of Kiel as Charles Peter Ulrich of Schleswig-Holstein-Gottorp (German: Karl Peter Ulrich von Schleswig-Holstein-Gottorp), the grandson of Peter the Great and great-grandson of Charles XI of Sweden.

After a 186-day reign, Peter III was overthrown in a palace coup d'état orchestrated by his wife, and soon died under unclear circumstances. The official cause proposed by Catherine's new government was that he died due to hemorrhoids. This explanation was met with skepticism, both in Russia and abroad, with notable critics such as Voltaire and d'Alembert expressing doubt about the plausibility of death from such a condition.

The personality and activities of Peter III were long disregarded by historians and his figure was seen as purely negative, but since the 1990s, after the dissolution of the Soviet Union, more attention has been directed at the decrees he signed. His most notable reforms were the abolition of the secret police, exemption of nobles from compulsory military service, confiscation of church lands, and equalisation of all religions. He also put an end to the persecution of the Old Believers and made the killing of serfs by landowners punishable by exile. Although he is mostly criticised for undoing Russian gains in the Seven Years' War by forming an alliance with Prussia, Catherine continued it and many of his other policies.

After Peter III's death, many impostors thrived, pretending to be him, the most famous of whom were Yemelyan Pugachev and the "Montenegerin Tsar Peter III" (Stephan the Little).