When were Peter III and Catherine the Great married?
Catherine the Great
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Princess Sophie's father, a devout German Lutheran, opposed his daughter's conversion to Eastern Orthodoxy. Despite his objection, on 28 June 1744 the Russian Orthodox Church received Princess Sophie as a member with the new name Catherine (Yekaterina or Ekaterina) and the (artificial) patronymic Алексеевна (Alekseyevna, daughter of Aleksey). On the following day, the formal betrothal took place. The long-planned dynastic marriage finally occurred on 21 August 1745 in Saint Petersburg. Sophia had turned 16; her father did not travel to Russia for the wedding. The bridegroom, known then as Peter von Holstein-Gottorp, had become Duke of Holstein-Gottorp (located in the north-west of present-day Germany near the border with Denmark) in 1739. The newlyweds settled in the palace of Oranienbaum, which remained the residence of the "young court" for many years to come.