question: When did Prince Alexander Romanov's father die?
context: [["Harry Johnson (wrestler)", ["Harry Johnson( 1903- date of death unknown) was an English wrestler."]], ["Bill Smith (footballer, born 1897)", ["William Thomas Smith( born 9 April 1897, date of death unknown) was an English professional footballer."]], ["Prince Nikita Alexandrovich of Russia", ["Prince Nikita Alexandrovich of Russia (13 January 1900 \u2013 12 September 1974) was the third son and fourth 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.", "Born in Imperial Russia during the reign of his uncle, Prince Nikita escaped the fate of many of his relatives who were killed by the Bolsheviks.", "He left Russia in April 1919, at age nineteen.", "In 1922 he married Countess Maria Vorontsova-Dashkova.", "The couple had two children."]], ["Prince Alexander Romanov", ["Prince Alexander Nikitich Romanov (4 November 1929 \u2013 22 September 2002) was a member of the Romanov family.", "He was a son of Prince Nikita Alexandrovich of Russia and a great nephew of Nicholas II of Russia, the last Tsar.", "Born in France, he took British citizenship in 1938 and lived with his grand mother Grand Duchess Xenia Alexandrovna in England until her death in 1960.", "The following year, Prince Alexander Nikitich became the first member of the Romanov family to visit Russia after the Revolution."]], ["Thomas Scott (diver)", ["Thomas Scott( 1907- date of death unknown) was an English diver."]], ["Ali Kay", ["Princess Alison von F\u00fcrstenberg( n\u00e9e Alison Parker Kay) is an American model and fashion designer.", "She is the second wife of Prince Alexander von F\u00fcrstenberg."]], ["Etan Boritzer", ["Etan Boritzer( born 1950) is an American writer of children \u2019s literature who is best known for his book\" What is God?\" first published in 1989.", "His best selling\" What is?\" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.", "Boritzer gained national critical acclaim after\" What is God?\" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.", "The other current books in the\" What is?\" series include", "What is Love?,", "What is Death?,", "What is Beautiful?,", "What is Funny?,", "What is Right?,", "What is Peace?,", "What is Money?,", "What is Dreaming?,", "What is a Friend?,", "What is True?,", "What is a Family?,", "What is a Feeling?\"", "The series is now also translated into 15 languages.", "Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.", "His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.", "Boritzer now lives in Venice, California and maintains his publishing office there also.", "He has helped numerous other authors to get published through\" How to Get Your Book Published!\" programs.", "Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.", "He is also recognized nationally as an erudite speaker on\" The Teachings of the Buddha.\""]], ["Theodred II (Bishop of Elmham)", ["Theodred II was a medieval Bishop of Elmham.", "The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997."]], ["Harry Wainwright (footballer)", ["Harry Wainwright( born 1899; date of death unknown) was an English footballer."]], ["Albert Thompson (footballer, born 1912)", ["Albert Thompson( born 1912, date of death unknown) was a Welsh footballer."]]]
supporting_facts: [["Prince Alexander Romanov", 1], ["Prince Nikita Alexandrovich of Russia", 0]]
evidences: [["Prince Alexander Nikitich Romanov", "father", "Prince Nikita Alexandrovich of Russia"], ["Prince Nikita Alexandrovich of Russia", "date of death", "12 September 1974"]]
answer: 12 September 1974