Grand Duchess Natalia Petrovna of Russia (1718–1725) Grand Duchess Natalia Petrovna of Russia (1718–1725) Grand Duchess Natalia Petrovna of Russia was the youngest daughter of Peter the Great and his second wife Catherine I. Born in St. Petersburg, on 20 August 1718, during the peace negotiations with Sweden (Aland Congress). When Peter was at this time on the teachings of the galley fleet, and to learn about the birth of his daughter, made a feast, and sent his fleet to St. Petersburg. "This day August 20 at Trinity glorified Almighty God has bestowed His Imperial Majesty the brightest newborn daughter, she is called by the same name
Peter III of Russia Charles Frederick, Duke of Holstein-Gottorp (a nephew of Charles XII of Sweden), and Anna Petrovna (a daughter of Emperor Peter I and Empress Catherine I of Russia). His mother died shortly after his birth. In 1739, Peter's father died, and he became Duke of Holstein-Gottorp as Charles Peter Ulrich () at the age of 11. When Elizabeth, his mother's younger sister, became Empress of Russia, she brought Peter from Germany to Russia and proclaimed him her heir presumptive in the autumn of 1742. Previously in 1742, the 14-year-old Peter was proclaimed King of Finland during the Russo-Swedish War (1741–1743), when