Peter III of Russia Peter III of Russia Peter III ( – ) (, "Pyotr III Fyodorovich") was Emperor of Russia for six months in 1762. He was born in Kiel as Karl Peter Ulrich von Schleswig-Holstein-Gottorp, the only child of Charles Frederick, Duke of Holstein-Gottorp (the son of Hedvig Sophia of Sweden, sister of Charles XII), and Anna Petrovna (the elder surviving daughter of Peter the Great). The German Peter could hardly speak Russian and pursued a strongly pro-Prussian policy, which made him an unpopular leader. He was deposed and possibly assassinated as a result of a conspiracy led by his German wife,
Catherine I of Russia Mons had had an affair, but there is no evidence for this. Peter died (28 January 1725 Old Style) without naming a successor. Catherine represented the interests of the "new men", commoners who had been brought to positions of great power by Peter based on competence. A change of government was likely to favor the entrenched aristocrats. For that reason during a meeting of a council to decide on a successor, a coup was arranged by Menshikov and others in which the guards regiments with whom Catherine was very popular proclaimed her the ruler of Russia, giving her the title