Question: What is the date of birth of Hedvig Elizabeth Von Biron's mother?

Knowledge 1: Hedvig Elizabeth von Biron
Hedvig Elizabeth von Biron of Courland( 1727–1797), was a princess of Courland and a Russian courtier, daughter of the Duke of Courland, Ernst Johann von Biron, and Benigna Gottlieb von Trotha gt Treyden, and the sister of Peter von Biron.She was the Ober- Hofmeisterin of the Empress Elizabeth of Russia and an influential person at the Russian court. [SEP] Knowledge 2: Benigna Gottliebe von Trotta genannt Treyden
Benigna Gottliebe von Trotta genannt Treyden( 15 October 1703 – 5 November 1782), was a Duchess consort of Courland.She married the Duke of Courland, Ernst Johann von Biron, on 25 February 1723.
Knowledge 1: Hedvig Elizabeth von Biron
Hedvig Elizabeth von Biron of Courland( 1727–1797), was a princess of Courland and a Russian courtier, daughter of the Duke of Courland, Ernst Johann von Biron, and Benigna Gottlieb von Trotha gt Treyden, and the sister of Peter von Biron.She was the Ober- Hofmeisterin of the Empress Elizabeth of Russia and an influential person at the Russian court. [SEP] Knowledge 2: Ernst Johann von Biron
Ernst Johann von Biron) was a Duke of Courland and Semigallia( 1737) and briefly regent of the Russian Empire in 1740.
Knowledge 1: Hedvig Elizabeth von Biron
Hedvig Elizabeth von Biron of Courland( 1727–1797), was a princess of Courland and a Russian courtier, daughter of the Duke of Courland, Ernst Johann von Biron, and Benigna Gottlieb von Trotha gt Treyden, and the sister of Peter von Biron.She was the Ober- Hofmeisterin of the Empress Elizabeth of Russia and an influential person at the Russian court. [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: 15 October 1703