Question: When was the husband of Margit Fischer born? 

Context paragraphs:
Irene Fischer: Irene Kaminka Fischer (born July 27, 1907 in Vienna, died October 22, 2009 in Boston) was a mathematician, geodesist, National Academy of Engineering Member; Fellow International Geophysical Union, Inductee of the National Imagery and Mapping Agency Hall of Fame.  Fischer became one of two internationally known women scientists in the field of geodesy during the golden age of the Mercury and Apollo moon missions.  Her Mercury Datum, or Fischer Ellipsoid 1960 and 1968, as well as her work on the lunar parallax, were instrumental in conducting these missions.  "In his preface to the ACSM publication, Fischer's former colleague, Bernard Chovitz, referred to her as one of the most renowned geodesists of the third quarter of the twentieth century.  Yet this fact alone makes her one of the most renowned geodesists of all times, because, according to Chovitz, the third quarter of the twentieth century witnessed "the transition of geodesy from a regional to a global enterprise."

Margit Anna: Margit Anna (born Margit Sichermann; 23 December 1913 – 3 June 1991) was a twentieth century Hungarian painter.

Randy Fischer: Randy Fischer (born c. 1951) is a former legislator in the U.S. state of Colorado.  An engineering consultant with a background in natural resources, Fischer was first elected as a Democrat in 2006 to the Colorado House of Representatives, Fischer represented House District 53, which encompasses the western half of Fort Collins, Colorado.  In the legislature, Fischer sponsored legislation relating to uranium mining and also focused on water and environmental issues.  In the house, he served for a time as Deputy Majority Whip and chair of the Agriculture and Natural Resources committees.  Term limited, he did not seek re-election in 2014, and his term ended in early January, 2015.

Heinz Fischer: Heinz Fischer {'1': ", '2': ", '3': 'GColIH', '4': "} (] ; born 9 October 1938) is an Austrian politician.  He took office as 11th State President on 8 July 2004 and was re-elected for a second and last term on 25 April 2010, leaving office on 8 July 2016.  Fischer previously served as Minister of Science from 1983 to 1987 and as President of the National Council of Austria from 1990 to 2002.  A member of the Social Democratic Party of Austria (SPÖ), he suspended his party membership for the duration of his presidency.

Margit Babos: Margit Babos (maiden name Margit Greskovits, 1931–2009) was a Hungarian mycologist born on 28 October 1931 in Budapest.  She became one of the most widely recognized mycologists in the second half of the 20th century in Eastern Europe, with contributions to mycological research, fungal taxonomy and recording the mycoflora of Hungary.

Peter Voss, Thief of Millions (1958 film): Peter Voss, Thief of Millions (German: Peter Voss, der Millionendieb) is a 1958 West German comedy crime film directed by Wolfgang Becker and starring O.W. Fischer, Ingrid Andree and Margit Saad.  It was based on the 1913 novel "Peter Voss, Thief of Millions" by Ewald Gerhard Seeliger, which had been previously adapted into three films.  The film was a popular success, and was followed by a sequel "Peter Voss, Hero of the Day" with Fischer reprising his role.

Helga Seidler: Helga Seidler (née Fischer born August 5, 1949 in Oberneuschönberg) is a former East German athlete who mainly competed in the women's 400 metres event.

Margit Evelyn Newton: Margit Evelyn Newton (born Margit Gansbacher in 1961 in Bolzano, Italy) is a South Tyrolean Italian actress who appeared in fourteen films between 1979 and 1990.  Frequently billed as Margie Newton, she also received billing, at various points in her career, as Margie Moreau, Margi Eveline Newton and Margi Evelyn Newton.

Brent Fischer: Brent Sean Cecil Fischer (born July 13, 1964) is an American composer, arranger, bandleader, bass guitarist and percussionist.  The son of noted composer, arranger, and keyboardist Clare Fischer, Brent made his recording debut with his father's Latin jazz combo, Salsa Picante, at the age of sixteen, thus inaugurating a more than 30-year-long professional association between the two.  Initially confined to performing credits, his input gradually expanded, until, by 2004, Fischer had assumed not merely a large share of the elder Fischer's arranging workload, but also active leadership of the various working ensembles hitherto directed by his father; moreover, since 2005, Brent Fischer has produced all of his father's albums, starting with "Introspectivo".  The first two of these released after Dr. Fischer's death, "¡Ritmo!"  and "Music for Strings, Percussion and the Rest", each won Grammys; the former in 2013 for Best Latin Jazz Album, the latter in 2014 for Best Instrumental Composition.

Margit Fischer: Margit Fischer (née Binder; born 28 June 1943 in Stockholm, Sweden) is the wife of Heinz Fischer, the former president of Austria.

Supporting paragraphs: Margit Fischer Heinz Fischer
Answer: 9 October 1938