query: When were Peter III and Catherine the Great married?
passage: Catherine the Great
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.
passage: Catherine the Great
Catherine was born in Stettin, Pomerania, Kingdom of Prussia (now Szczecin, Poland) as Princess Sophie Friederike Auguste von Anhalt-Zerbst-Dornburg. Her father, Christian August, Prince of Anhalt-Zerbst, belonged to the ruling German family of Anhalt,[4] but held the rank of a Prussian general in his capacity as governor of the city of Stettin. Two of her first cousins became Kings of Sweden: Gustav III and Charles XIII.[5] In accordance with the custom then prevailing in the ruling dynasties of Germany, she received her education chiefly from a French governess and from tutors. Catherine was regarded as a tomboy and known by the nickname Fike.[6] Her childhood was quite uneventful. She once wrote to her correspondent Baron Grimm: "I see nothing of interest in it."[7] Although Catherine was born a princess, her family had very little money. Catherine's rise to power was supported by her mother's wealthy relatives who were both wealthy nobles and royal relations.[8][9]