Wilhelm Friedemann Bach

Wikipedia Biographical Summary:

"...Wilhelm Friedemann Bach (22 November 1710 – 1 July 1784), the second child and eldest son of Johann Sebastian Bach and Maria Barbara Bach, was a German composer and performer. Despite his acknowledged genius as an organist, improviser and composer, his income and employment were unstable and he died in poverty..."

"...Wilhelm Friedemann (hereafter Friedemann) was born in Weimar, where his father was employed as organist and chamber musician to the Duke of Saxe-Weimar. In July 1720, when Friedemann was nine, his mother Maria Barbara Bach died suddenly; Johann Sebastian Bach remarried in December of 1721. J. S. Bach supervised Friedemann's musical education and career with great attention..."

"... In 1751, Friedemann married Dorothea Elisabeth Georgi (1721–1791), who was 11 years his junior and who outlived him by seven years. Dorothea was the daughter of a tax collector. The landed estates she inherited caused the family to be placed in a high tax bracket by Halle authorities, who were raising taxes to meet the revenue demands of the Seven Years' War. To raise cash for these payments, she sold part of her property in 1770. The couple produced two sons and a daughter, Friederica Sophia (born in 1757), who was the only one of their offspring to live past infancy. The descendants of Friederica Sophia eventually migrated to Oklahoma...

SOURCE: http://en.wikipedia.org/wiki/Wilhelm_Friedemann_Bach