Catherine I of Russia Catherine I of Russia Catherine I (, born , later known as Marta Samuilovna Skavronskaya; – ) was the second wife of Peter the Great and Empress of Russia from 1725 until her death. The life of Catherine I was said by Voltaire to be nearly as extraordinary as that of Peter the Great himself. There are no documents that confirm her origins. Said to have been born on 15 April 1684 (o.s. 5 April), she was originally named Marta Helena Skowrońska. Marta was the daughter of Samuel Skowroński (later spelt "Samuil Skavronsky"), a Roman Catholic peasant from the Polish–Lithuanian
Catherine the Great could see the benefits of Britain's friendship, she was wary of Britain's increased power following its victory in the Seven Years' War, which threatened the European balance of power. Peter the Great had succeeded in gaining a toehold in the south, on the edge of the Black Sea, in the Azov campaigns. Catherine completed the conquest of the south, making Russia the dominant power in south-eastern Europe after the Russo-Turkish War of 1768–74. Russia inflicted some of the heaviest defeats ever suffered by the Ottoman Empire, including the Battle of Chesma (5–7 July 1770) and the Battle of Kagul (21