question: When is Christiane Sehested's mother's birthday?
context: [["Brian Saunders (weightlifter)", ["Brian Saunders( date of birth and death unknown) was a male weightlifter who competed for England."]], ["Pamela Jain", ["Pamela Jain is an Indian playback singer.", "Date of Birth:16th March."]], ["Les Richards", ["Les Richards( date of birth unknown) was an Australian rules footballer who played with North Melbourne in the Victorian Football League( VFL)."]], ["Mark Kenneth Woods", ["Mark Kenneth Woods( date of birth unknown) is a Canadian comedy writer, actor, producer, director and TV host."]], ["Kirsten Munk", ["Kirsten Munk (sometimes \"Christina Munk\"; 6 July 1598 19 April 1658) was a Danish noble, the second spouse of King Christian IV of Denmark, and mother to twelve of his children."]], ["Jan Harlan", ["Jan Harlan( born May 5, 1937) is a German- American executive producer and the brother of Christiane Kubrick, director Stanley Kubrick's widow.", "He is the nephew of the film director Veit Harlan."]], ["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."]], ["Terence Robinson", ["Terence D. Robinson( date of birth and death unknown) was a male wrestler who competed for England."]], ["Christiane Sehested", ["Christiane Christiansdatter Sehested (15 July 1626 \u2013 1670) was the daughter of king Christian IV of Denmark and his morganatic spouse, Kirsten Munk.", "She shared the title \"Countess of Schleswig-Holstein\" with her mother and siblings.", "She was the twin of her sister Hedevig Ulfeldt.", "She was raised under the supervision of the royal governess Karen Sehested.", "Christiane was engaged by her father with the noble Hannibal Sehested, viceroy of Norway, in 1636.", "She was married under great festivities in Copenhagen in 1642.", "She left for Norway with her spouse and lived with him in Akershus fortress in Oslo.", "Her father died in 1648.", "In 1651, her husband lost his position, and she was called to Copenhagen to sign a statement in which her spouse was deprived of his Norwegian estates.", "She also lost her status as countess.", "Her relationship with Sehested, and her siblings was not close, and in 1651\u201358, she lived alone in poverty in Hamburg.", "She returned to Denmark in 1658 to side with the invading Swedes with her spouse to avenge the loss of her status; they joined the Swedish camp outside the sieged Danish capital.", "In 1660, Sehested regained the trust of the court, and in 1662, she was given back her personal status as countess.", "In 1666, she was widowed and retired to her estates.", "She is known to have written several folk songs."]]]
supporting_facts: [["Christiane Sehested", 0], ["Kirsten Munk", 0]]
evidences: [["Christiane Christiansdatter Sehested", "mother", "Kirsten Munk"], ["Kirsten Munk", "date of birth", "6 July 1598"]]
answer: 6 July 1598