question: When did Nonia Celsa's husband die?
context: [["Albert Thompson (footballer, born 1912)", ["Albert Thompson( born 1912, date of death unknown) was a Welsh 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."]], ["Harry Wainwright (footballer)", ["Harry Wainwright( born 1899; date of death unknown) was an English footballer."]], ["Thomas Scott (diver)", ["Thomas Scott( 1907- date of death unknown) was an English diver."]], ["Fred Bradley (rower)", ["Frederick Bradley( 1908- date of death unknown) was an English rower."]], ["Nonia Celsa", ["Nonia Celsa is the name given by the \"Historia Augusta\" to the wife of Roman Emperor Macrinus, who ruled briefly in 217\u2013218.", "She was the mother of Diadumenian (born in 208)."]], ["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.\""]], ["Harry Johnson (wrestler)", ["Harry Johnson( 1903- date of death unknown) was an English wrestler."]], ["Macrinus", ["Macrinus (\u2013 June 218) was Roman Emperor from April 217 to 8 June 218.", "He reigned jointly with his young son Diadumenianus.", "Macrinus was by origin a Berber from Mauretania Caesariensis.", "A member of the equestrian class, he became the first emperor who did not hail from the senatorial class and was the first emperor from Mauretania.", "Before becoming emperor, Macrinus served under Emperor Caracalla as a praetorian prefect and dealt with Rome's civil affairs.", "He later conspired against Caracalla and had him murdered in a bid to protect his own life, succeeding him as emperor.", "Macrinus was proclaimed emperor of Rome by 11 April 217 while in the eastern provinces of the empire and was subsequently confirmed as such by the Senate; however, for the duration of his reign, he never had the opportunity to return to Rome.", "His predecessor's policies had left Rome's coffers empty and the empire at war with several kingdoms, including Parthia, Armenia and Dacia.", "As emperor, Macrinus first attempted to enact reform to bring economic and diplomatic stability to Rome.", "While Macrinus' diplomatic actions brought about peace with each of the individual kingdoms, the additional monetary costs and subsequent fiscal reforms generated unrest in the Roman military.", "Caracalla's aunt Julia Maesa took advantage of the unrest and instigated a rebellion to have her fourteen-year-old grandson, Elagabalus, recognized as emperor.", "Macrinus was overthrown at the Battle of Antioch on 8 June 218 and Elagabalus proclaimed himself emperor with support from the rebelling Roman legions.", "Macrinus fled the battlefield and tried to reach Rome but was captured in Chalcedon and later executed in Cappadocia.", "He sent his son to the care of Artabanus V of Parthia, but Diadumenianus was also captured before he could reach his destination and executed.", "After Macrinus' death, the Senate declared him and his son enemies of Rome and had their names struck from the records and their images destroyed."]], ["Bill Smith (footballer, born 1897)", ["William Thomas Smith( born 9 April 1897, date of death unknown) was an English professional footballer."]]]
supporting_facts: [["Nonia Celsa", 0], ["Macrinus", 0]]
evidences: [["Nonia Celsa", "spouse", "Macrinus"], ["Macrinus", "date of death", "218"]]
answer: 218