Alexandra Feodorovna (Russian: Алекса́ндра Фёдоровна, IPA: [ɐlʲɪˈksandrə ˈfjɵdərəvnə]), born Princess Charlotte of Prussia (13 July 1798 – 1 November 1860), was Empress of Russia as the wife of Emperor Nicholas I (r. 1825–1855 ).