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.
Irina Paley
Princess Irina Pavlovna Paley( 21 December 1903 – 15 November 1990) was the daughter of Grand Duke Paul Alexandrovich of Russia and his second wife, Olga Valerianovna Karnovich.
Grand Duke Paul Alexandrovich of Russia
Grand Duke Paul Alexandrovich of Russia (3 October 1860 – 28 January 1919) was the sixth son and youngest child of Emperor Alexander II of Russia by his first wife, Empress Maria Alexandrovna.
He was a brother of Emperor Alexander III and uncle of Nicholas II, Russia's last monarch.
He entered the Russian Army, was a general in the Cavalry and adjutant general to his brother Emperor Alexander III, and a Knight of the Order of St. Andrew.
In 1889, he married Princess Alexandra of Greece, his paternal first cousin once removed.
The couple had a daughter and a son, but Alexandra died after the birth of their second child.
In his widowhood, Grand Duke Paul began a relationship with Olga Valerianovna Karnovich, a married woman with three children.
After obtaining a divorce for Olga and in defiance of a strong family opposition, Grand Duke Paul married her in October 1902.
As he contracted a morganatic marriage with a divorcée in defiance of the Tsar's prohibition, Grand Duke Paul was banished from living in Russia and deprived of his titles and privileges.
Between 1902 and 1914, he lived in exile in Paris with his second wife, who gave him three children.
In the spring of 1914, he settled back in Russia with his second family.
With the outbreak of World War I, Grand Duke Paul was appointed in command of the first corps of the Imperial Guard.
Afflicted with ill health, he served only intermittently.
During the last days of the Tsarist period, he was one of the few members of the Romanov family who remained close to Tsar Nicholas II and his wife, Alexandra Feodorovna.
It fell upon Grand Duke Paul to inform Alexandra of Nicholas II's abdication.
After the fall of the Russian monarchy, Grand Duke Paul initially remained at his palace in Tsarskoe Selo during the period of the provisional government.
With the Bolsheviks ascending to power, his palace was expropriated, and eventually he was arrested and sent to prison.
In declining health, he was shot by the Bolsheviks with other Romanov relatives in the courtyard of the Peter and Paul Fortress in January 1919, and his remains were thrown into a common grave.
Princess Olga Paley
Princess Olga Valerianovna Paley( 2 December 1865 – 2 November 1929) was the morganatic second wife of Grand Duke Paul Alexandrovich of Russia.
Natalia Pavlovna Paley
Princess Natalia Pavlovna Paley (5 December 1905 – 27 December 1981) was a Russian aristocrat who was a non-dynastic member of the Romanov family.
A daughter of Grand Duke Paul Alexandrovich of Russia, she was a first cousin of the last Russian emperor, Nicholas II.
After the Russian Revolution, she emigrated first to France and later to the United States.
She became a fashion model, socialite, "vendeuse", and briefly pursued a career as a film actress.
Grand Duke George Mikhailovich of Russia (1863–1919)
Grand Duke George Mikhailovich of Russia (23 August 1863 – 28 January 1919) was a son of Grand Duke Michael Nikolaevich of Russia and a first cousin of Emperor Alexander III.
He was a General in the Russian army in World War I. During the Russian Revolution, he was imprisoned by the Bolsheviks and shot by a firing squad, along with his brother, Grand Duke Nicholas Mikhailovich, and his cousins Grand Dukes Paul Alexandrovich and Dmitry Konstantinovich.
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 Duke Sergei Alexandrovich of Russia
Grand Duke Sergei Alexandrovich of Russia ("Сергей Александрович"; 11 May 1857 – 17 February 1905) was the fifth son and seventh child of Emperor Alexander II of Russia.
He was an influential figure during the reigns of his brother Emperor Alexander III of Russia and his nephew Emperor Nicholas II, who was also his brother in law through Sergei's marriage to Elizabeth, the sister of Tsarina Alexandra.
Grand Duke Sergei's education gave him lifelong interests in culture and the arts.
Like all male members of the Romanov dynasty, he followed a military career, and he fought in the Russo-Turkish War of 1877–78, receiving the Order of St George for courage and bravery in action.
In 1882, his brother, Tsar Alexander III, appointed him Commander of the 1st Battalion Preobrazhensky Life Guard Regiment, a position he held until 1891.
In 1889, Grand Duke Sergei was promoted to the rank of Major General.
In 1884, Sergei married Princess Elisabeth of Hesse and by Rhine, a granddaughter of Queen Victoria.
Their marriage remained childless, but they became the guardians of the two children of his brother, Grand Duke Paul Alexandrovich of Russia: Grand Duchess Maria, and Grand Duke Dmitri.
Grand Duke Sergei Alexandrovich and his wife promoted the marriage of Sergei's nephew, Tsar NicholasII, with Princess Alix of Hesse, Elizabeth's youngest sister.
Between 1891 and 1905, Grand Duke Sergei served as Governor General of Moscow.
His reputation was tarnished as he was partially blamed for the Khodynka Tragedy, which, during the festivities following the coronation of Emperor NicholasII, resulted in thousands of deaths.
As a Governor of Moscow, Grand Duke Sergei was responsible for the expulsion of Moscow's 20,000 Jews at the start of his tenure, and he repressed a student movement to prevent the spread of revolutionary ideas.
His conservative policies, extreme even by contemporary standards, made him a polarizing figure, and he was regarded as a reactionary.
In 1894 Grand Duke Sergei was made a member of the State Council.
In 1896 he was promoted to Lieutenant General and appointed as Commander of Moscow military district.
After thirteen years of service, Grand Duke Sergei resigned from the Governorship on 1 January 1905.
Targeted by the SR Combat Organization, he was assassinated by a terrorist bomb at the Kremlin.
Abdul-Vahed Niyazov
' of Russia.
Alexandra Pistohlkors
Alexandra Alexandrovna Pistohlkors(" née" Taneyeva; 1888–1968) was the younger daughter of noted Russian composer Alexander Taneyev and the sister of Anna Vyrubova.
Her husband was Alexander Erikovich Pistohlkors, who was the stepson of Grand Duke Paul Alexandrovich of Russia.
Like her sister, Alexandra was for a time a devotee of the starets Grigori Rasputin.

Question: What is the cause of death of Grand Duke Paul Alexandrovich Of Russia's mother?
Answer: tuberculosis