Nina Arkina
Nina Arkina( 1891–1980) was a Russian- born Norwegian writer.
She was born in Odessa, but lived in Norway.
She issued biographical novels about Catherine the Great( 1949), Alexander I of Russia( two volumes in 1950 and 1951), Nicholas I of Russia and Alexander Pushkin( 1954), Alexander II of Russia( 1956), Alexander III of Russia and Nicholas II of Russia( 1963), Sonya Kovalevsky( 1967), Karl Marx( 1968) and Vladimir Lenin( 1972).
She was married to editor and politician Victor Mogens.
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.
Maria of Courtenay
Marie de Courtenay( c. 1204 – September 1228) was an Empress of Nicaea.
She was a daughter of Peter II of Courtenay and Yolanda of Flanders.
She married Theodore I of Nicaea.
Marie served as regent for her younger brother Baldwin II of Courtenay in 1228, and styled herself" Empress of Constantinople".
Abdul-Vahed Niyazov
' of Russia.
Beatrice of Sicily (1326–1365)
Beatrice of Sicily (5 September 1326 – 12 October 1365) was a daughter of Peter II of Sicily and his wife Elisabeth of Carinthia.
She was born into the House of Aragon.
Yevdokiya Lopukhina
Tsarina Eudoxia Feodorovna Lopukhina( in Moscow – in Moscow) was a Russian Tsaritsa as the first wife of Peter I of Russia, and the last ethnic Russian and non-foreign wife of a Russian monarch.
They married on 27 January 1689 and divorced in 1698.
She was the mother of Tsarevich Alexei Petrovich and the paternal grandmother of Peter II of Russia.
Peter II of Russia
Peter II Alexeyevich (Russian: Пётр II Алексеевич, "Pyotr II Alekseyevich")  reigned as Emperor of Russia from 1727 until his untimely death.
He was the only son of Tsarevich Alexei Petrovich (son of Peter the Great by his first wife, Eudoxia Lopukhina) and of Charlotte Christine of Brunswick-Lüneburg.
Margaret, Marchioness of Namur
Margaret, Marchioness of Namur( c. 1194 – 17 July 1270) was ruling Marchioness of Namur in 1229- 1237.
She was the daughter of Peter II of Courtenay and Yolanda of Flanders.
Grand Duchess Natalya Alexeyevna of Russia (1714–1728)
Grand Duchess Natalya Alexeyevna of Russia (21 July 1714 – 22 November 1728) was a Russian Grand Duchess.
She was the elder sister of Emperor Peter II of Russia, a maternal first cousin of Empress Maria Theresa I, The Holy Roman Empress and Charles I, Duke of Brunswick-Wolfenbüttel and also a paternal first cousin of Emperor Peter III of Russia
Charlotte Christine of Brunswick-Wolfenbüttel
Charlotte Christine Sophie also known as Sophie Charlotte or simply Charlotte (28 August 1694, Wolfenbüttel – 2 November 1715, Saint Petersburg), was the wife of Tsarevich Alexei Petrovich of Russia.
She was the daughter of Louis Rudolph, Duke of Brunswick-Wolfenbüttel and Princess Christine Louise of Oettingen-Oettingen.
She was also the great aunt of Queen Marie Antoinette of France.

Question: Where did Peter Ii Of Russia's mother die?
Answer: Saint Petersburg