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
Olga Nikolaevna of Russia aunt, Grand Duchess Catherine of Russia; Olga's paternal uncle, Grand Duke Michael of Russia, married William I's niece, Princess Charlotte of Württemberg. Olga gave her consent to Charles' proposal of marriage after only a few meetings, on 18 January. The wedding was held in great splendor on 13 July 1846 at the Peterhof Palace, Russia. The couple came back from Russia to Württemberg on 23 September. They lived mostly in the Villa Berg in Stuttgart and in the Kloster Hofen in Friedrichshafen. The couple had no children, probably because of Charles’ homosexuality. Olga's husband became the object of scandal several