Catherine I of Russia to bribe the Ottoman grand vizier Baltacı Mehmet Pasha into allowing a retreat. Mehmet allowed the retreat, whether motivated by the bribe or considerations of trade and diplomacy. In any case Peter credited Catherine and proceeded to marry her again (this time officially) at Saint Isaac's Cathedral in St. Petersburg on 9 February 1712. Catherine was Peter's second wife; he had previously married and divorced Eudoxia Lopukhina, who had borne him the Tsarevich Alexis Petrovich. Upon their wedding, Catherine took the style of her husband and became Tsarina. When Peter elevated the Russian Tsardom to Empire, Catherine became Empress. The
Grand Duchess Catherine Mikhailovna of Russia Grand Duke of Mecklenburg-Strelitz (1779–1860) and Princess Marie of Hesse-Kassel (1796–1880). They had four children: She died in St. Petersburg, aged 66. Grand Duchess Catherine Mikhailovna of Russia Grand Duchess Catherine Mikhailovna of Russia (Ekaterina Mikhailovna Romanova), () (28 August 1827 – 12 May 1894), was the third of five daughters of Grand Duke Michael Pavlovich of Russia, youngest son of Tsar Paul I, and Princess Charlotte of Württemberg. She was born in St. Petersburg. She had two elder sisters, Grand Duchess Maria and Grand Duchess Yelizaveta, called "Lili". Two more sisters were born after her, Alexandra and Anna, who