question: When is Octavius Vernon Harcourt's father's birthday?
context: [["Lewis Harcourt, 1st Viscount Harcourt", ["Lewis Vernon Harcourt, 1st Viscount Harcourt (born Reginald Vernon Harcourt; 31 January 1863 \u2013 24 February 1922) was a British Liberal Party politician who held the Cabinet post of Secretary of State for the Colonies from 1910 to 1915.", "Lord Harcourt's nickname was \"Loulou\"."]], ["Augustus George Vernon Harcourt", ["Augustus George Vernon Harcourt FRS( 24 December 1834 \u2013 23 August 1919) was an English chemist who spent his career at Oxford University.", "He was one of the first scientists to do quantitative work in the field of chemical kinetics.", "His uncle, William Vernon Harcourt( 1789 \u2013 1871), founded the British Association for the Advancement of Science."]], ["Brian Saunders (weightlifter)", ["Brian Saunders( date of birth and death unknown) was a male weightlifter who competed for England."]], ["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.\""]], ["Leveson Venables-Vernon-Harcourt", ["The Venerable Leveson Venables- Vernon -Harcourt( b 20 March 1788 \u2013 26 July 1860) was Archdeacon of Cleveland from 3 December 1828 until 27 October 1832.", "He was the son of Edward Venables- Vernon- Harcourt, born at Sudbury, Derbyshire.", "He matriculated at Christ Church, Oxford in 1806, graduating B.A. in 1810, and M.A. 1813.", "He was for many years Chancellor of the Diocese of York."]], ["Edward Venables-Vernon-Harcourt", ["Edward Venables-Vernon-Harcourt (10 October 1757 \u2013 5 November 1847) was a Church of England bishop.", "He was the Bishop of Carlisle from 1791 to 1807 and then the Archbishop of York until his death.", "He was the third son of the George Venables-Vernon, 1st Baron Vernon (1709\u20131780), and took the additional name of Harcourt on succeeding to the property of his cousin, the last Earl Harcourt, in 1831."]], ["Robert Harcourt (Liberal politician)", ["Robert Venables Vernon Harcourt( 7 May 1878 \u2013 8 September 1962) was a British diplomat, playwright, farmer and Liberal Party politician."]], ["Octavius Vernon Harcourt", ["Octavius Henry Cyril Vernon Harcourt (25 December 1793 - 14 August 1863) was a British naval officer.", "He was the eighth son of Edward Venables-Vernon-Harcourt, Archbishop of York, and began life as Octavius Henry Cyril Vernon at Rose Castle, Cumberland.", "On 15 January 1831, succeeding to the properties of William Harcourt, 3rd Earl Harcourt, the father's cousin, the family assumed the additional surname of \"Harcourt\"."]], ["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."]], ["Francis Venables-Vernon-Harcourt", ["Colonel Francis Venables-Vernon-Harcourt (6 January 1801 \u2013 23 April 1880) was a British Conservative Party politician."]]]
supporting_facts: [["Octavius Vernon Harcourt", 1], ["Edward Venables-Vernon-Harcourt", 0]]
evidences: [["Octavius Henry Cyril Vernon Harcourt", "father", "Edward Venables-Vernon-Harcourt"], ["Edward Venables-Vernon-Harcourt", "date of birth", "10 October 1757"]]
answer: 10 October 1757