Peter III Fyodorovich (Russian: Пётр III Фёдорович, romanized: Pyotr III Fyodorovich, born Charles Peter Ulrich of Schleswig-Holstein-Gottorp; 21 February 1728 – 17 July 1762) was Emperor of Russia from 5 January 1762 until 9 July of the same year, when his wife, Catherine II, overthrew him in a palace coup d'état. He implemented many notable reforms during his reign, though he is criticised for undoing Russian gains in the Seven Years' War by forming an alliance with Prussia.
Peter was the son of Duke Charles Frederick of Holstein-Gottorp, and Grand Duchess Anna Petrovna of Russia, who died of puerperal fever after childbirth. After succeeding to the throne of Holstein-Gottorp following his father’s death, Peter was made heir presumptive to both the Russian and Swedish thrones in 1742. Due to his conversion to Russian Orthodoxy, he was disqualified from becoming King of Sweden.
Peter married his paternal second cousin, Princess Sophie of Anhalt-Zerbst, who took the Orthodox name of Catherine Alexeievna, in 1745. They had one child who survived to adulthood, Paul Petrovich. Peter succeeded his maternal aunt as Emperor of Russia in 1762. After a 186-day reign, Peter III was overthrown 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.
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).
Peter was born on 21 February 1728 in Kiel in the duchy of Holstein-Gottorp. His parents were Charles Frederick, Duke of Holstein-Gottorp, and Grand Duchess Anna Petrovna of Russia. Charles Frederick was a great-grandson of Charles XI of Sweden, and Anna was a daughter of the Russian monarchs Peter the Great and Catherine I. Peter's twenty-year-old mother died just a few weeks after his birth. In 1739, Peter's father also died, and the orphaned boy became Duke of Holstein-Gottorp as Charles Peter Ulrich (German: Karl Peter Ulrich) at the age of 11.
Two years later, Peter's maternal aunt Elizabeth became Empress of Russia. As she had no children of her own, she brought Peter from Germany to Russia and proclaimed him her heir presumptive in the autumn of 1742. Previously in 1742, the 14-year-old Peter was proclaimed Grand Duke of Finland during the Russo-Swedish War (1741–1743), when Russian troops held Finland. This proclamation was based on his succession rights to territories held by his childless great-uncle, the late Charles XII of Sweden, who also had been Grand Duke of Finland. About the same time, in October 1742, he was chosen by the Swedish parliament to become heir presumptive to the Swedish throne. However, the Swedish parliament was unaware of the fact that he had also been proclaimed heir presumptive to the throne of Russia, and when their envoy arrived in Saint Petersburg in November, it was too late. Also in November, Peter converted to Eastern Orthodoxy under the name of Pyotr Feodorovich, and was created Grand Duke of Russia. The words "Grandson of Peter the Great" (Russian: внук Петра Великого, romanized: vnuk Petra Velikogo) were made an obligatory part of his official title, underscoring his dynastic claim to the Russian throne, and it was made a criminal offence to omit them.
Empress Elizabeth arranged for Peter to marry his second cousin, Sophia Augusta Frederica (later Catherine the Great), daughter of Christian August, Prince of Anhalt-Zerbst, and Princess Joanna Elisabeth of Holstein-Gottorp. Sophia formally converted to Russian Orthodoxy and took the name Ekaterina Alexeievna (i.e., Catherine). They married on 21 August 1745. The marriage was not a happy one but produced one son, the future Emperor Paul I, and one daughter, Anna Petrovna (9 December 1757– 8 March 1759). Catherine later claimed in her private writings that Paul was not fathered by Peter; that, in fact, they had never consummated the marriage. During the sixteen years of their residence in Oranienbaum, Catherine took numerous lovers, while her husband did the same in the beginning.
The classical view of Peter's character is mainly drawn out of the memoirs of his wife and successor. She described him as an "idiot" and as a "drunkard from Holstein", also describing her marriage with him with "there is nothing worse than having a child-husband"; even Peter's idol, Frederick the Great mentioned him by saying "he allowed himself to be dethroned like a child sent off to bed".
This portrait of Peter can be found in most history books, including the 1911 Encyclopædia Britannica:
Nature had made him mean, the smallpox had made him hideous, and his degraded habits made him loathsome. And Peter had all the sentiments of the worst kind of a small German prince of the time. He had the conviction that his princeship entitled him to disregard decency and the feelings of others. He planned brutal practical jokes, in which blows had always a share. His most manly taste did not rise above the kind of military interest which has been defined as "corporal's mania," the passion for uniforms, pipeclay, buttons, the "tricks of parade and the froth of discipline." He detested the Russians, and surrounded himself with Holsteiners.
There have been many attempts to revise the traditional characterization of Peter and his policies. The Russian historian A. S. Mylnikov views Peter III very differently:
Many contradictory qualities existed in him: keen observation, zeal and sharp wit in his arguments and actions, incaution and lack of perspicuity in conversation, frankness, goodness, sarcasm, a hot temper, and wrathfulness.
The German historian Elena Palmer goes even further, portraying Peter III as a cultured, open-minded emperor who tried to introduce various courageous, even democratic reforms in 18th-century Russia. A monument for Peter III stands in Kiel, the city of his birth.
After Peter succeeded to the Russian throne (5 January 1762 [O.S. 25 December 1761]), he withdrew Russian forces from the Seven Years' War and concluded a peace treaty (5 May [O.S. 24 April] 1762) with Prussia (dubbed the "Second Miracle of the House of Brandenburg"). He gave up Russian conquests in Prussia and offered 12,000 troops to make an alliance with Frederick II of Prussia (19 June [O.S. 8 June] 1762). Russia thus switched from an enemy of Prussia to an ally—Russian troops withdrew from Berlin and marched against the Austrians. This dramatically shifted the balance of power in Europe, suddenly handing the delighted Frederick the initiative. Frederick recaptured southern Silesia (October 1762) and subsequently forced Austria to the negotiating table.
As Duke of Holstein-Gottorp, Peter planned war against Denmark-Norway in order to restore parts of Schleswig to his Duchy. He focused on making alliances with Sweden and with Great Britain to ensure that they would not interfere on Denmark's behalf, while Russian forces gathered at Kolberg in Russian-occupied Pomerania. Alarmed at the Russian troops concentrating near their borders, unable to find any allies to resist Russian aggression, and short of money to fund a war, the government of Denmark threatened in late June to invade the free city of Hamburg in northern Germany to force a loan from it. Peter considered this a casus belli and prepared for open warfare against Denmark.
In June 1762, 40,000 Russian troops assembled in Pomerania under General Pyotr Rumyantsev, preparing to face 27,000 Danish troops under the French general Count St. Germain in case the Russian–Danish freedom conference (scheduled for 1 July 1762 in Berlin under the patronage of Frederick II) failed to resolve the issue. However, shortly before the conference, Peter lost his throne (9 July [O.S. 28 June] 1762) and the conference did not occur. The issue of Schleswig remained unresolved. Peter was accused of planning an unpatriotic war.