Question: When did Marzuban Ibn Muhammad's father die?

Knowledge 1: Marzuban ibn Muhammad
Marzuban ibn Muhammad (died 957) was the Sallarid ruler of Azerbaijan (941/42–957).He was the son of Muhammad bin Musafir, the ruler of Tarum. [SEP] Knowledge 2: Muhammad ibn Musafir
Muhammad bin Musafir (died before 953) was the Sallarid ruler of Tarum in modern northwest Iran (before 916–941) and Iranian Azerbaijan (949).He was the son of Musafir, whose name appears to have been an Arabicized form of his Persian name Asfar/Asvar.Muhammad's original name seems to have been Sallar or Salar(Persian for 'commander'); 'Sallar' would later become a title used by his successors.
Knowledge 1: Marzuban ibn Bakhtiyar
Marzuban ibn Bakhtiyar was a Buyid prince, and the son of the Buyid ruler of Iraq,' Izz al- Dawla Bakhtiyar.Little is known of Marzuban's life.In 970, he married a daughter of the Turkish officer Bukhtakin Azadruwayh.In 975, he received the title of" I'zaz al- DawlaFortification of the Empire"), while several other of his family members and officers received other titles.After the defeat of his father in 977 at the hands of his relative' Adud al- Dawla, he, along with his father and uncles went to Damascus, where they were warmly received by its ruler, Alptakin, who, however, made them involved in his conflict with the Fatimid Caliphate of Egypt.A battle shortly ensured at Ramla between the army of Alptakin and the Fatimids.However, during the battle, Marzuban betrayed Alptakin and abandoned the battlefield.The forces of Alptakin were shortly defeated, and Marzuban's uncle Abu Tahir was killed, while his other uncle Abu Ishaq Ibrahim was taken captive by the Fatimids.Nothing further is heard of Marzuban. [SEP] Knowledge 2: Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s 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 includeWhat 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."
Knowledge 1: Muhammad ibn Musafir
Muhammad bin Musafir (died before 953) was the Sallarid ruler of Tarum in modern northwest Iran (before 916–941) and Iranian Azerbaijan (949).He was the son of Musafir, whose name appears to have been an Arabicized form of his Persian name Asfar/Asvar.Muhammad's original name seems to have been Sallar or Salar(Persian for 'commander'); 'Sallar' would later become a title used by his successors. [SEP] Knowledge 2: Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s 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 includeWhat 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."

Answer: 953