Question: When was Ellen Roosval Von Hallwyl's mother born?

Knowledge 1: Ellen Roosval von Hallwyl
Ellen Roosval von Hallwyl (1867-1952), was a Swedish painter, sculptor and composer.She was the daughter of Count Walther and Countess Wilhelmina von Hallwyl.She was a student of the Wallinska skolan.She married the courtier and diplomat Henrik de Maré in 1887 and was the mother of Rolf de Maré, founder of the Ballets suédois.After divorcing de Maré in 1906, Ellen married the art historian Johnny Roosval the year after.Roosval was twelve years her junior and her son's tutor, which created a scandal in Sweden.During the 1920s, she exhibited her sculptures at the Théâtre des Champs-Élysées.She was given the Litteris et Artibus in 1925. [SEP] Knowledge 2: Wilhelmina von Hallwyl
Countess Anna Fridrica Wilhelmina von Hallwyl, née Kempe (1 October 1844 − 25 July 1930) was a Swedish collector and donor whose accumulation of art and other objects constitute the current Hallwyl Museum in Stockholm.
Knowledge 1: Ellen Roosval von Hallwyl
Ellen Roosval von Hallwyl (1867-1952), was a Swedish painter, sculptor and composer.She was the daughter of Count Walther and Countess Wilhelmina von Hallwyl.She was a student of the Wallinska skolan.She married the courtier and diplomat Henrik de Maré in 1887 and was the mother of Rolf de Maré, founder of the Ballets suédois.After divorcing de Maré in 1906, Ellen married the art historian Johnny Roosval the year after.Roosval was twelve years her junior and her son's tutor, which created a scandal in Sweden.During the 1920s, she exhibited her sculptures at the Théâtre des Champs-Élysées.She was given the Litteris et Artibus in 1925. [SEP] Knowledge 2: Franz Josef von Hallwyl
Franz Josef von Hallwyl, born 1719 in from Solothurn, son of lieutenant-colonel Abraham Gabriel von Hallwyl and Anna Franziska de Tayac, dead 1785 in Colmar, France, was a Swiss officer, marechal de camp in French service, colonel-proprietor of the Swiss regiment de Karrer.He married Marie Therese de Mydorge in 1757.Hallwyl was rewarded multiple times; becoming a knight of the Order of Saint Louis in 1745 for meritorious service in the battle of Fontenoy, a knight of the Polish Order of the White Eagle 1777, and a French count.
Knowledge 1: Ellen Roosval von Hallwyl
Ellen Roosval von Hallwyl (1867-1952), was a Swedish painter, sculptor and composer.She was the daughter of Count Walther and Countess Wilhelmina von Hallwyl.She was a student of the Wallinska skolan.She married the courtier and diplomat Henrik de Maré in 1887 and was the mother of Rolf de Maré, founder of the Ballets suédois.After divorcing de Maré in 1906, Ellen married the art historian Johnny Roosval the year after.Roosval was twelve years her junior and her son's tutor, which created a scandal in Sweden.During the 1920s, she exhibited her sculptures at the Théâtre des Champs-Élysées.She was given the Litteris et Artibus in 1925. [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: 1 October 1844