Princess Irina Alexandrovna of Russia
Princess Irina Alexandrovna of Russia( 15 July( O.S. 3 July) 1895 – 26 February 1970) was the only daughter and eldest child of Grand Duke Alexander Mikhailovich of Russia and Grand Duchess Xenia Alexandrovna of Russia.
She was also the only niece of Tsar Nicholas II of Russia, and the wife of the wealthiest man in Imperial Russia, Prince Felix Felixovich Yusupov, one of the men who murdered Grigori Rasputin," holy healer" to her cousin, the hemophiliac Tsarevich Alexei Nikolaevich of Russia, in 1916.
Maria Alexandrovna (Marie of Hesse)
Maria Alexandrovna , born Princess Marie of Hesse and by Rhine (8 August 1824 – 3 June 1880) was Empress of Russia as the first wife of Emperor Alexander II.
She was the mother of Emperor Alexander III and paternal grandmother of Nicholas II and Grand Duke Dmitri Pavlovich of Russia, one of the murderers of Rasputin.
She was a daughter of Ludwig II, Grand Duke of Hesse, and Princess Wilhelmine of Baden.
Marie was raised in austerity but was well educated by her mother, who took personal charge of her education but died when Marie was still very young.
She was only fourteen years old when the Tsarevich Alexander Nikolaevich, later Tsar Alexander II of Russia, fell in love with her while he was traveling to Western Europe.
She arrived in Russia in September 1840, converted to the Orthodox Church, took the title of Grand Duchess of Russia and traded the name Marie for Maria Alexandrovna.
She married Alexander on 16 April 1841.
The couple had eight children: two daughters and six sons.
For fourteen years (1840–1855), she was Tsarevna, the wife of the heir of the Russian throne.
She became the Russian Empress consort after the death of her father-in-law, Tsar Nicholas I.
Maria Alexandrovna learned the Russian language quickly; she was pious and identified with her adopted country.
She did not enjoy court life or the duties of representation as she was shy and of a withdrawn nature.
As a consequence she was not popular.
She took a more focused interest in charitable activities after the death of her mother-in-law the Dowager Empress Alexandra Feodorovna in 1860.
Maria Alexandrovna was particularly active in the field of female education, establishing Russia's first all female schools.
She organized the Russian Red Cross and expanded its activities during the Russo-Turkish War of 1877–78.
She was deeply affected by the death of her eldest son the Tsarevich Nicholas Alexandrovich in 1865.
By then, her fragile constitution was undermined by her numerous pregnancies and by tuberculosis which afflicted her since 1863.
To avoid the harsh Russian winters, she spent long sojourns in the Crimea and in southern Europe.
During many summers she visited her family in Jugenheim, where she had spent her childhood.
Her marriage to Tsar Alexander II started as a love match and it was happy for some years, but Alexander II had many affairs and in 1866 he fell in love with Catherine Dolgorukova and had four children with his mistress.
Maria Alexandrovna was treated with respect by her philanderer husband
and she was much loved by her surviving children.
After a long illness, she died in 1880.
The Mariinsky Theatre in Saint Petersburg, the city of Mariinsk in Kemerovo Oblast, and the city of Mariehamn in Åland are named after her.
Grand Duchess Olga Pavlovna of Russia
Grand Duchess Olga Pavlovna of Russia  was a "Grand Duchess of Russia" as the second youngest daughter and seventh child of Emperor Paul I of Russia and his empress consort, Sophie Dorothea of Württemberg.
Prince Dmitri Alexandrovich of Russia
Prince Dmitri Alexandrovich of Russia( 15 August 1901 – 7 July 1980) was the fourth son and fifth child of Grand Duke Alexander Mikhailovich of Russia and Grand Duchess Xenia Alexandrovna of Russia.
He was a nephew of Tsar Nicholas II of Russia.
Grand Duchess Alexandra Alexandrovna of Russia
Grand Duchess Alexandra Alexandrovna of Russia (30 August 1842 – 10 July 1849) was the eldest child and first daughter of Tsar Alexander II of Russia and his first wife Marie of Hesse and by Rhine.
She died from infant meningitis at the age of six and a half.
Grand Duke Nicholas Konstantinovich of Russia
Grand Duke Nicholas Constantinovich of Russia( 14 February 1850 – 26 January 1918) was the first- born son of Grand Duke Konstantin Nikolayevich and Grand Duchess Alexandra Iosifovna of Russia and a grandson of Nicholas I of Russia.
Grand Duchess Alexandra Nikolaevna of Russia
Grand Duchess Alexandra Nikolaevna of Russia( 24 June 1825 – 10 August 1844) was the youngest daughter and fourth child of Tsar Nicholas I, Emperor of Russia, and his wife, Princess Charlotte of Prussia.
She was a younger sister of Tsar Alexander II of Russia.
Duchess Alexandra of Oldenburg
Grand Duchess Alexandra Petrovna of Russia( tr.; Born Duchess Alexandra Frederica Wilhelmina of Oldenburg; 2 June 1838 – 25 April 1900) was a great- granddaughter of Emperor Paul I of Russia and the wife of Grand Duke Nicholas Nikolaevich of Russia, the elder.
Born Duchess Alexandra of Oldenburg, she was the eldest daughter of Duke Peter of Oldenburg and his wife Princess Therese of Nassau- Weilburg.
She grew up in Russia in close proximity to the Romanovs as her father was a nephew of Tsar Nicholas I of Russia.
Alexandra ’s parents were artistically gifted and passionate philanthropists.
They provided a good education for her and inspired in Alexandra a life of service to those in need.
Alexandra married in 1856, Grand Duke Nicholas Nikolaevich of Russia, the third son of TsarNicholas I and her first cousin once removed.
Alexandra, who had been raised in the Lutheran church, converted to the Orthodox faith, and took the name Grand Duchess Alexandra Petrovna of Russia.
The couple had two children: Grand Duke Nicholas Nikolaevich of Russia( 1856 – 1929), the younger, and Grand Duke Peter Nikolaevich of Russia( 1864 – 1931).
The marriage, arranged by the Russian Imperial family in an attempt to control the Grand Duke ’s excesses, was unhappy.
She was plain, serious and liked simplicity.
Deeply religious and very involved in charity work, Alexandra founded a training institute for nurses in St Petersburg in 1865.
The same year, her husband began an affair with a ballerina, forming a second family with his mistress.
After the collapse of her marriage, Alexandra lived separated from her husband who expelled her from their household in 1879.
A carriage accident left her almost completely paralyzed and, in November 1880, Alexandra went abroad to improve her health, compelled by her brother- in- law Tsar Alexander II.
The following year, she asked her nephew, Tsar Alexander III, to allow her to return to Russia and she settled in Kiev.
She recovered her mobility and, in 1889, she founded the Pokrov of Our Lady Monastery, a convent of nursing nuns with its own hospital, to provide free treatment for the poor.
She dedicated the rest of her life to the work at the hospital.
In 1889, she became an Orthodox nun under the name Anastasia.
She died at the convent in 1900.
Abdul-Vahed Niyazov
' of Russia.
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.

Question: What is the cause of death of Grand Duchess Alexandra Alexandrovna Of Russia's mother?
Answer: tuberculosis