question: What is the date of death of Deuteria's husband?
context: [["Harry Johnson (wrestler)", ["Harry Johnson( 1903- date of death unknown) was an English wrestler."]], ["Fred Bradley (rower)", ["Frederick Bradley( 1908- date of death unknown) was an English rower."]], ["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.\""]], ["Thomas Scott (diver)", ["Thomas Scott( 1907- date of death unknown) was an English diver."]], ["Albert Thompson (footballer, born 1912)", ["Albert Thompson( born 1912, date of death unknown) was a Welsh footballer."]], ["Harry Wainwright (footballer)", ["Harry Wainwright( born 1899; date of death unknown) was an English footballer."]], ["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."]], ["Theudebert I", ["Theudebert I  (c. 503 \u2013 547 or 548) was the Merovingian king of Austrasia from 533 to his death in 548.", "He was the son of Theuderic I and the father of Theudebald."]], ["Bill Smith (footballer, born 1897)", ["William Thomas Smith( born 9 April 1897, date of death unknown) was an English professional footballer."]], ["Deuteria", ["Deuteria or \"Deoteria\" (fl. 540), was a Frankish Queen consort; the first spouse of king Theudebert I.", "Deuteria belonged to an aristocratic Gallo-Roman family from Auvergne and was a relation to Sidonius Apollinaris, Saint Avitus and Emperor Avitus.", "She was living in Septimania, married and had a daughter, Adia, when the area was attacked by Theudebert I in 533.", "He fell in love with her, and when he became king the same year, he sent for her.", "She left her husband but brought her daughter with her to court, where she and Theudebert became lovers.", "At this point, her husband was still alive and Theudebert was engaged to Wisigard, a Lombard princess.", "It has never been confirmed whether the couple ever performed a wedding ceremony or not.", "Theudebert continued to be engaged to Wisigard, and Deuteria is sometimes called a concubine, but Deuteria is almost without exception referred to as Queen, despite this insecurity.", "According to Gregory of Tours, in 536 Deuteria had her daughter drowned in fear of her becoming a rival over Theudebert.", "After the murder, the aristocracy had Theudebert expel Deuteria from court and forced him to marry Wisigarde.", "It is said that he wished to recall Deuteria after Wisigard's death in 540, but did not dare to."]]]
supporting_facts: [["Deuteria", 0], ["Theudebert I", 0]]
evidences: [["Deuteria", "spouse", "Theudebert I"], ["Theudebert I", "date of death", "548"]]
answer: 548