question: When did Harald Iii Of Denmark's father die?
context: [["Harald III of Denmark", ["Harald III (Harald the Whetstone, ; \u2013 April 17, 1080) was King of Denmark from 1076 to 1080.", "Harald III was an illegitimate son of Danish king Sweyn II Estridsson, and contested the crown with some of his brothers.", "He was a peaceful ruler who initiated a number of reforms.", "Harald was married to his cousin Margareta Hasbj\u00f6rnsdatter, but did not leave any heirs, and was succeeded by his brother Canute IV the Saint.", "Four of his half-brothers were in turn crowned Danish kings, with his youngest brother becoming the Danish king known as Harald IV (Harald the Young), Danish: Harald Olpe."]], ["Thomas Scott (diver)", ["Thomas Scott( 1907- date of death unknown) was an English diver."]], ["Francis of Denmark", ["Francis of Denmark( 15 July 1497 \u2013 1 April 1511), was a prince of Denmark, Norway and Sweden, the youngest son of King John of Denmark and Christina of Saxony."]], ["Finn \u00c1rnasson", ["Finnr \u00c1rnason( modern Norwegian Finn Arnesson; died c. 1065) was a Norwegian nobleman and advisor to both King Olaf Haraldsson( later named Saint Olaf) and King Harald III of Norway and later served King Sweyn II of Denmark.", "He was the feudal lord(\" lendmann\") of Austr\u00e5tt."]], ["Sweyn II of Denmark", ["Sweyn II Estridsson  (\u2013 28 April 1076) was King of Denmark from 1047 until his death in 1076.", "He was the son of Ulf Thorgilsson and Estrid Svendsdatter, and the grandson of King Sweyn I Forkbeard through his mother's line.", "He was married three times, and fathered 20 children or more out of wedlock, including the five future kings Harald III Hen, Canute IV", "the Saint, Oluf", "I Hunger, Eric", "I Evergood, and Niels.", "He was courageous in battle, but did not have much success as a military commander.", "His skeleton reveals that he was a tall, powerfully built man who walked with a limp."]], ["Olaf (II) Haraldsen", ["Olaf Haraldsen( died) was a Danish anti-king who ruled Scania for a few years from 1139.", "He never won control over the rest of Denmark, and he is not included in the list of Danish monarchs used by the Danish monarchy or\" Den Store Danske Encyklop\u00e6di\".", "He is sometimes called\" Olaf II\" even though there was a later Olaf II of Denmark.", "He was the son of Harald Kesja and thus nephew of King Eric II of Denmark.", "He seems to have been the only who escaped Eric II's murder of Harald and his sons in 1135.", "After trying in vain to regain his heritage, Olaf proclaimed himself king in Scania in 1139, fighting his cousin King Eric III of Denmark.", "The civil war mostly consisted of alternating raids, during which Olaf killed Bishop Rike of Roskilde, an act that saw him excommunicated by the Pope.", "He was at last defeated by Eric III and was killed in a battle in Middle Scania around 1143.", "Harald Skr\u00e6nk, the leader of a peasant rebellion in Scania about 1182, is said to have been Olaf's illegitimate son, but their connection is unsure."]], ["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.\""]], ["Princess Caroline-Mathilde of Denmark", ["Princess Caroline- Mathilde of Denmark( 27 April 1912 \u2013 12 December 1995) was a daughter of Prince Harald of Denmark and granddaughter of King Frederick VIII of Denmark.", "As the wife of Knud, Hereditary Prince of Denmark, she became Hereditary Princess of Denmark."]], ["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."]], ["Elisiv of Kiev", ["Elisaveta Yaroslavna of Kiev( Norwegian:\" Ellisif\" or\" Elisiv\", 1025 \u2013 c. 1067), was a Princess of Kiev and Queen Consort of King Harald III of Norway."]]]
supporting_facts: [["Harald III of Denmark", 1], ["Sweyn II of Denmark", 0]]
evidences: [["Harald III of Denmark", "father", "Sweyn II"], ["Sweyn II", "date of death", "28 April 1076"]]
answer: 28 April 1076