Question: When did Maria Mstislavna Of Kiev's husband die?

Knowledge 1: Maria Mstislavna of Kiev
Maria Mstislavna of Kiev (died 1179), was a Grand Princess consort of Kiev by marriage to Prince Vsevolod II of Kiev.She was the daughter of Mstislav I of Kiev and Christina Ingesdotter of Sweden.Her marriage was arranged in 1116 to facilitate better relations between her father and spouse, who were long standing enemies.During the reign of her spouse, she was known for her diplomatic ability, and often asked to mediate between her husband and brothers.She is believed to be one of the founders of St. Cyril's Monastery. [SEP] Knowledge 2: Vsevolod II of Kiev
Vsevolod II Olgovich (Cyrillic: Всеволод II Ольгович)(died August 1, 1146) was the Prince (Knyaz) of Chernigov (1127–1139) and Grand Prince (Velikiy Knyaz) of Kiev (1139–1146), son of Oleg Svyatoslavich, Prince of Chernigov.Vsevolod married Maria Mstislavna of Kiev, the daughter of Grand Duke Mstislav of Kiev.They had two sons and two daughters:
Though he had two sons, Vsevolod's chosen successor was his brother, Igor, and he obtained pledges from his subjects to accept Igor as his heir.According to one account, Vsevolod even had the Kievans kiss the Holy Cross and swear loyalty to Igor, which they resented.Shortly before his death, Vsevolod became a monk under the name Gavriil.
Knowledge 1: Maria Mstislavna of Kiev
Maria Mstislavna of Kiev (died 1179), was a Grand Princess consort of Kiev by marriage to Prince Vsevolod II of Kiev.She was the daughter of Mstislav I of Kiev and Christina Ingesdotter of Sweden.Her marriage was arranged in 1116 to facilitate better relations between her father and spouse, who were long standing enemies.During the reign of her spouse, she was known for her diplomatic ability, and often asked to mediate between her husband and brothers.She is believed to be one of the founders of St. Cyril's Monastery. [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: Maria Mstislavna of Kiev
Maria Mstislavna of Kiev (died 1179), was a Grand Princess consort of Kiev by marriage to Prince Vsevolod II of Kiev.She was the daughter of Mstislav I of Kiev and Christina Ingesdotter of Sweden.Her marriage was arranged in 1116 to facilitate better relations between her father and spouse, who were long standing enemies.During the reign of her spouse, she was known for her diplomatic ability, and often asked to mediate between her husband and brothers.She is believed to be one of the founders of St. Cyril's Monastery. [SEP] Knowledge 2: Harry Wainwright (footballer)
Harry Wainwright( born 1899; date of death unknown) was an English footballer.

Answer: August 1, 1146