question: Where was the place of death of Duke Constantine Petrovich Of Oldenburg's mother?
context: [["Duke Constantine Petrovich of Oldenburg", ["Duke Constantine Frederick Peter of Oldenburg (tr. ; 9 May 1850 - 18 March 1906) was a son of Duke Peter Georgievich of Oldenburg and his wife Princess Therese of Nassau-Weilburg Known in the court of Tsar Nicholas II as Prince Constantine Petrovich Oldenburgsky, he was the father of the Russian Counts and Countesses von Zarnekau."]], ["Duchess Therese Petrovna of Oldenburg", ["Duchess Therese Wilhelmine Olga Friederike of Oldenburg (30 March 1852 \u2013 19 April 1883) was the youngest daughter of Duke Peter Georgievich of Oldenburg and his wife Princess Therese of Nassau-Weilburg."]], ["Anthony I, Count of Oldenburg", ["Anthony I, Count of Oldenburg and Delmenhorst( 1505 \u2013 22 January 1573, Oldenburg) was a member of the House of Oldenburg and was the Imperial Count of the Counties of Oldenburg and Delmenhorst within the Holy Roman Empire of German Nation.", "His parents were John V, Count of Oldenburg( 1460- 1525) and Anna of Anhalt- Zerbst."]], ["Countess Alexandra von Zarnekau", ["Countess Alexandra Constantinovna von Zarnekau (Russian: \u0433\u0440\u0430\u0444\u0438\u043d\u044f \u0410\u043b\u0435\u043a\u0441\u0430\u043d\u0434\u0440\u0430 \u041a\u043e\u043d\u0441\u0442\u0430\u043d\u0442\u0438\u043d\u043e\u0432\u043d\u0430 \u0417\u0430\u0440\u043d\u0435\u043a\u0430\u0443, 10 May 1883 - 28 May 1957) was the eldest daughter of Duke Constantine Petrovich of Oldenburg and his morganatic wife, Agrippina Japaridze, Countess von Zarnekau.", "At age 17, on 11 February 1900, Countess Alexandra married Prince George Alexandrovich Yuryevsky, the son of Tsar Alexander II by his mistress (and later wife), Ekaterina Mikhailovna Dolgorukova, the Princess Yourievskya.", "They were married at Nice, France, and had one child, Prince Alexander Georgievich Yourievsky, who was born 20 December 1901.", "Alexandra and George divorced in 1908.", "Countess Alexandra married secondly to Leo Vassilievich Narishkin on 17 October 1908 at Paris, France.", "During the First World War, Countess Alexandra worked as an administrator of the Russian hospital at Saloniki.", "After the war, she settled in Paris, France.", "She died there on 28 May 1957 at age 74."]], ["John V, Count of Oldenburg", ["John V, Count of Oldenburg and Delmenhorst (also counted as John XIV, including also non-ruling namesake siblings; 1460, Oldenburg \u2013 10 February 1526, Oldenburg) was a member of the House of Oldenburg.", "He was the ruling Count of Oldenburg from 1500 to 1526.", "His parents were Gerhard VI, Count of Oldenburg and Adelheid of Tecklenburg."]], ["Duke Peter of Oldenburg", ["Duke Constantine Frederick Peter of Oldenburg( 26 August 1812 in Yaroslavl, Russian Empire \u2013 14 May 1881 in St. Petersburg, Russian Empire) was a Duke of the House of Oldenburg.", "He was the grandfather of Duke Peter of Oldenburg as well as grandfather of Grand Duke Nicholas Nikolaevich, General of the Imperial Russian Army during World War I.", "His great- great grandson, Nicholas Romanov, was the President of the Romanov Family Association until his death in 2014.", "Peter of Oldenburg was a scholar and philanthropist.", "He was also noted composer of music.", "In 1857 he composed the music for Marius Petipa's ballet\" La Rose, la Violette et le Papillon\".", "The\" Pas d' Esclave\" from the ballet\" Le Corsaire\", which is taken from his score for this work, is still heard in theatres all over the world."]], ["Princess Therese of Nassau-Weilburg", ["Princess Therese Wilhelmine Friederike Isabelle Charlotte of Nassau-Weilburg, (", "Terezya Vasilyevna Nassauskaya; 17 April 1815 in Weilburg, Duchy of Nassau \u2013 8 December 1871 in Prague, Kingdom of Bohemia, Austria\u2013Hungary) was a member of the House of Nassau-Weilburg and a Princess of Nassau-Weilburg by birth.", "Through her marriage to Duke Peter of Oldenburg, Therese was also a Duchess of Oldenburg."]], ["Christian, Duke of Oldenburg", ["Christian, Duke of Oldenburg( born 1 February 1955) is the head of the Grand Ducal Family of Oldenburg."]], ["Conrad I, Count of Oldenburg", ["Conrad I of Oldenburg (died 1347) was the Count of Oldenburg from 1344 to 1347.", "He succeeded his brother, John III of Oldenburg.", "He was the son of John II of Oldenburg and Hedwig of Diepholz.", "Conrad married Ingeborg, the daughter of Count Gerhard IV of Holstein-Pl\u00f6n.", "They had four children:", "Conrad I of Oldenburg is also a male-line ancestor of Queen Margrethe II of Denmark, King Harald V of Norway, and of Philip, Duke of Edinburgh, and thus of Charles, Prince of Wales, and Prince William, Duke of Cambridge."]], ["John VII, Count of Oldenburg", ["Count John VII of Oldenburg and Delmenhorst( nicknamed\" the Dike Builder\"; 9 September 1540 in Oldenburg \u2013 12 November 1603 in Oldenburg) was a member of the House of Oldenburg and was the ruling Count of County of Oldenburg from 1573 until his death.", "His parents were Count Anthony I of Oldenburg and Sophie of Saxe- Lauenburg."]]]
supporting_facts: [["Duke Constantine Petrovich of Oldenburg", 0], ["Princess Therese of Nassau-Weilburg", 1]]
evidences: [["Duke Constantine Frederick Peter of Oldenburg", "mother", "Princess Therese of Nassau-Weilburg"], ["Princess Therese of Nassau-Weilburg", "place of death", "Prague"]]
answer: Prague