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
Catherine I of Russia of letters exist demonstrating the strong affection between Catherine and Peter. As a person she was very energetic, compassionate, charming and always cheerful. She was able to calm Peter in his frequent rages and was called in to attend him during his epileptic seizures. Catherine went with Peter on his Pruth Campaign in 1711. There Catherine was said to have saved Peter and his Empire, as related by Voltaire in his book "Peter the Great". Surrounded by overwhelming numbers of Turkish troops, Catherine suggested before surrendering, that her jewels and those of the other women be used in an effort