Peter III of Russia
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 Johanna Elisabeth of Holstein-Gottorp. The young princess 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, and one daughter, Anna Petrovna (20 December 1757 – 19 March 1759). Catherine later claimed 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.
History of Russia (1721–96)
Peter the Great had two wives, Yevdokiya Lopukhina (the daughter of a minor noble) and Marfa Skavronskaya (a Lithuanian peasant, renamed Catherine after her conversion to Orthodoxy). Catherine I's rise through Peter I's Table of Ranks from a simple peasant to empress, embodied the Petrine spirit, making it seem as though Peter I literally “created” her. With the help of Aleksandr Menshikov (her advisor, ex-lover and leader of the palace guards), she gained the throne by emphasizing this connection to Peter I and her maternal nature. Due to her poor health, Menshikov did much of the ruling. With Catherine I's blessing, he created the Supreme Privy Council, which consisted of six or so members. It ultimately took over most of the functions of the Ruling Senate (an advisory body founded by Peter I to oversee judicial, financial and administrative affairs) Almost immediately, Catherine I appointed Peter II, the grandson of Peter the Great, as her successor and she died after only two years of ruling.