Daughter of King Nicholas I of Montenegro. She was first married to a prince, G.N. Romanovsky, Duke of Leuchtenberg, second - to grand Duke Nikolai Nikolaevich. Mother of the Prince S.G. Romanovsky, Duke of Leuchtenberg. She was very religious with a tendency to mysticism. Together with her twin sister Militsa she introduced Rasputin to the Russian royal family. She graduated from the Smolny Institute. In World War I led the Kiev hospital. In France, since 1920, patron of the Overseas Union of Russian military invalids. Under its auspices held the balls for ther Union of Gallipolians in Paris (1925, 1927, 1931). For some time patronized the Brotherhood of St. Anastasia in Menton (Alpes-Maritimes dep.). In May 2015 the body of Anastasia Nikolaevna Petrovic-Njegos Romanov was exhumed from the church and carried to Moscow where she is buried now.