Princess Anastasia Petrović-Njegoš of Montenegro (4 January [O.S. 23 December 1867] 1868 – 25 November 1935) was the daughter of King Nikola I Petrović-Njegoš of Montenegro (1841–1921) and his wife, Queen Milena (1847–1923). Through her second marriage, she became Grand Duchess Anastasia Nikolaevna Romanova of Russia. She and her sister "Militza" (Princess Milica), having married Russian royal brothers, were known colloquially as the "Montenegrin princesses" during the last days of Imperial Russia, and may have contributed to its downfall by the introduction of Grigori Rasputin to the Empress Alexandra. Life Early life Princess Anastasia was born in Cetinje, Montenegro, on 4 January 1868, the third child and third daughter of her parents. Although named Anastasia at birth, after her paternal grandmother, she was often known Princess Stana Petrovich Njegosh of Montenegro. As of the date of her father's assumption of the title and style of Royal Highness in 1900, she became known as Her Royal Highness Princess Stana Petrovich Njegosh of Montenegro. She retained her childhood nickname of "Stana" to close relations. Anastasia was educated at the Smolny Institute with her older sister, Princess Milica. First marriage On 28 August n.s., 1889, at the Imperial Russian Palace of Peterhof, Stana married Prince George Maximilianovich of Leuchtenberg (later the Duke of Leuchtenberg.) The Duke had previously been married and widowed, with one son, Alexander Georgievich, from his prior marriage to Princess Therese of Oldenburg. The couple had two children: Sergei Georgievich, 8th Duke von Leuchtenberg (1890–1974). Elena Georgievena, Duchess of Leuchtenberg, Princess Romanovskaya (1892–1971). She married on 18 July 1917, in Yalta, Count Stefan Tyszkiewicz (1894–1976, London). He was son of Count Władysław Tyszkiewicz and Princess Krystyna Maria Lubomirska. By birth he was a member of powerful and wealthy Tyszkiewicz family, one of few families which belonged to Magnates of Poland and Lithuania. Second marriage On 29 April 1907, at the age of 39, Anastasia was married to Grand Duke Nicholas Nikolaevich of Russia (1856–1929). The marriage was childless. Both her husbands were descendants of Emperor Nicholas I of Russia (1796–1855): the first one was his grandson through a maternal line, and the second one was his grandson through a direct male line. Both Anastasia and her second husband Nicholas were religious Eastern Orthodox Christians, with a tendency to and interest in Persian mysticism. Since the Montenegrins were a fiercely Slavic, anti-Turkish people from the Balkans, Anastasia reinforced the Pan Slav