(Peter III Fedorovich; Karl Peter Ulrich). Born Feb. 10 (21), 1728, in Kiel, Germany; died July 7 (18), 1762, in Ropsha, near St. Petersburg. Russian emperor from 1761 to 1762. Son of Charles Frederick, duke of Holstein-Gottorp, and Anna Petrovna, the daughter of Emperor Peter I the Great.
Peter III’s aunt, the Russian empress Elizaveta Petrovna, declared him her heir in 1742. In 1745 he married Princess Sophia Augusta Frederica of Anhalt-Zerbst (later, Empress Catherine II). An admirer of Frederick It’s Prussian system, Peter III ignored Russia’s national interests and in 1762 ended military operations against Prussia in the Seven Years’ War (1756-63), concluding a peace agreement with Frederick II. An ignorant man who occupied himself primarily with court diversions, Peter III left the tasks of governing to the court nobility and the highest administrators (A. I. Glebov, M. I. Vorontsov, and D. V. Volkov, for example). They adopted a number of measures in the interests of the dvorianstvo (nobility or gentry), including a decree freeing the dvorianstvo from service obligations (1762) and a decree abolishing the Tainaia Kantseliariia (Secret Office). Some of the changes aroused the discontent of the clergy—for example, the reestablishment of the Collegium of the Economy to administer ecclesiastical, monastery, and synodal estates, and preparations for the secularization of monasterial property.
An opposition movement headed by Peter Ill’s wife, Catherine, developed in the guards regiments in response to the tsar’s antinational foreign policy, his contempt for Russian customs, and the introduction of Prussian practices in the army. Peter III was deposed, arrested, and sent to his country home at Ropsha, where, with Catherine’s consent, he was murdered. The palace coup of 1762 gave rise to unfounded rumors that Peter III had been overthrown by the dvoriane (nobility or gentry) because of his intention to emancipate the peasants. E. I. Pugachev claimed to be Peter III.