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
Nicholas I of Russia born at Gatchina Palace in Gatchina to Grand Duke Paul, and Grand Duchess Maria Feodorovna of Russia. Five months after his birth, his grandmother, Catherine the Great, died and his parents became emperor and empress of Russia. He was a younger brother of Emperor Alexander I of Russia, who succeeded to the throne in 1801, and of Grand Duke Constantine Pavlovich of Russia. Riasanovsky says he was, "the most handsome man in Europe, but also a charmer who enjoyed feminine company and was often at his best with the ladies." On 13 July 1817, Nicholas married Princess Charlotte of Prussia