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
Duke Peter Georgievich of Oldenburg 1809 to Grand Duchess Catherine Pavlovna of Russia. Duke George, who had been appointed governor on the Volga, died six month after Peter Georgievitch, his second, was born. Peter's mother Grand Duchess Catherine Pavlovna of Russia was the favorite sister of Tsar Alexander I of Russia who took his two nephews, Peter and his older brother Alexander, under his protection. The brothers lived in Russia until his mother married King William I of Württemberg in 1816. They moved to Württemberg and were educated in Stuttgart. At the death of his mother, less than three years later, Peter and his brother