Alexander I of Russia His wife died a few months later as the emperor's body was transported to Saint Petersburg for the funeral. He was interred at the St. Peter and Paul Cathedral of the Peter and Paul Fortress in Saint Petersburg on 13 March 1826. Alexander's supposed non-death is as controversial as his life. There were many rumors and legends of which the most often told claimed he became a Siberian Hermit named Feodor Kuzmich. Historians reject the legends, but popular writers resurrect them often. Attribution: Alexander I of Russia Alexander I (, Aleksandr Pavlovich; – ) reigned as Emperor of Russia between
Duke Peter Alexandrovich of Oldenburg Duke Peter Alexandrovich of Oldenburg Peter Alexandrovich of Oldenburg (Duke Peter Friedrich Georg von Oldenburg) (21 November 1868 – 11 March 1924) was the first husband of Grand Duchess Olga Alexandrovna of Russia, the youngest sister of Tsar Nicholas II. He was born in Saint Petersburg, the only child of Duke Alexander Petrovich of Oldenburg (1844–1932) and Eugénie Maximilianovna of Leuchtenberg (1845–1925). His mother was a granddaughter of Tsar Nicholas I of Russia through Nicholas's daughter, Grand Duchess Maria Nikolayevna, and his father was a great-grandson of Tsar Paul I of Russia through his paternal grandmother Grand Duchess Catherine Pavlovna.