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.
Grand Duchess Maria Alexandrovna of Russia
Grand Duchess Maria Alexandrovna of Russia (later Duchess of Edinburgh and Duchess of Saxe-Coburg and Gotha; ; – 24 October 1920) was the fifth child and only surviving daughter of Emperor Alexander II of Russia and his first wife, Princess Marie of Hesse and by Rhine.
She was the younger sister of Alexander III of Russia and the paternal aunt of Russia's last emperor, Nicholas II.
In 1874 Grand Duchess Maria Alexandrovna married Prince Alfred, Duke of Edinburgh, the second son of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha; she was the only Romanov to marry into the British royal family.
The couple had five children: a son, Alfred, and four daughters: Marie, Victoria Melita, Alexandra, and Beatrice.
For the first years of her marriage, Maria Alexandrovna lived in England.
She neither adapted to the British court nor overcame her dislike for her adopted country.
She accompanied her husband on his postings as an Admiral of the Royal Navy at Malta (1886–1889) and Devonport (1890–1893).
The Duchess of Edinburgh travelled extensively through Europe.
She visited her family in Russia frequently and stayed for long periods in England and Germany attending social and family events.
In August 1893 Maria Alexandrovna became Duchess of Saxe-Coburg and Gotha when her husband inherited the duchy on the death of his childless uncle, Ernest II, Duke of Saxe-Coburg and Gotha.
She enjoyed life in Germany, where she became active in cultural endeavours and charitable work.
To her daughters she gave every support, but she was critical of her wayward son, who died young in 1899.
Her husband died the following year.
In her widowhood Maria Alexandrovna continued to live in Coburg.
The outbreak of World War I divided her sympathies.
She sided with Germany against her native Russia.
Her only surviving brother, Grand Duke Paul Alexandrovich, her nephew Tsar Nicholas II and many other relatives were killed during the Russian Revolution and she lost her considerable fortune.
From 1893 until her death, she had the distinction of being an Imperial Russian grand duchess (by birth), a British royal Duchess (by marriage), and the consort (and later widow) of a German sovereign Duke.
After World War I, Saxe-Coburg-Gotha, the duchy which her husband and nephew had ruled, ceased to exist in November 1918.
Maria Alexandrovna died two years later while living under reduced circumstances in exile in Switzerland.
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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.
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.
Grand Duchess Maria Pavlovna of Russia (1786–1859)
Grand Duchess
Maria Pavlovna of Russia( 16 February 1786[ OS 5 February] – 23 June 1859) was the third daughter of Paul I of Russia and Sophie Dorothea of Württemberg.
She was the" Grand Duchess of Saxe- Weimar- Eisenach" by her marriage to Charles Frederick, Grand Duke of Saxe- Weimar- Eisenach.
Grand Duchess Maria Pavlovna of Russia (1890–1958)
Grand Duchess Maria Pavlovna of Russia (– 13 December 1958), known as "Maria Pavlovna the Younger", was a granddaughter of Alexander II of Russia.
She was a paternal first cousin of Nicholas II (Russia's last Tsar) and maternal first cousin of Prince Philip, Duke of Edinburgh (consort of Elizabeth II).
Her early life was marked by the death of her mother and her father's banishment from Russia when he remarried a commoner in 1902.
Grand Duchess Maria and her younger brother Dmitri, to whom she remained very close throughout her life, were raised in Moscow by their paternal uncle Grand Duke Sergei Alexandrovich and his wife Grand Duchess Elizabeth Feodorovna of Russia, a granddaughter of Queen Victoria.
In 1908, Maria Pavlovna married Prince Wilhelm, Duke of Södermanland.
The couple had only one son, Prince Lennart, Duke of Småland later Count Bernadotte af Wisborg.
The marriage was unhappy and ended in divorce in 1914.
During World War I, Grand Duchess Maria Pavlovna served as a nurse until the fall of the Russian monarchy in February 1917.
In September 1917, during the period of the Russian Provisional Government, she married Prince Sergei Putyatin.
They had one son, Prince Roman Sergeievich Putyatin, who died in infancy.
The couple escaped revolutionary Russia through Ukraine in July 1918.
In exile, Grand Duchess Maria Pavlovna lived briefly in Bucharest and London before she settled in Paris in 1920.
In the 1920s, she opened "Kitmir", an embroidering fashion atelier that achieved some level of success.
In 1923, she divorced her second husband and after selling "Kitmir" in 1928, she emigrated to the United States.
While living in New York City, she published two books of memoirs: "The Education of a Princess" (1930), and "A Princess in Exile" (1932).
In 1942, Grand Duchess Maria Pavlovna moved to Argentina where she spent the years of World War II.
She returned permanently to Europe in 1949.
She died in Konstanz, Germany, in 1958.
Princess Alexandra of Saxe-Coburg and Gotha
Princess Alexandra of Saxe- Coburg and Gotha,,( Alexandra Louise Olga Victoria; 1 September 1878 – 16 April 1942), was the fourth child and third daughter of Alfred, Duke of Saxe- Coburg and Gotha and Grand Duchess Maria Alexandrovna of Russia.
She was a granddaughter of Queen Victoria of the United Kingdom as well as of Tsar Alexander II of Russia.
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.

Question: Who is the maternal grandmother of Grand Duchess Maria Alexandrovna Of Russia?