She wrote a music instruction manual around 1830 to aid in this work , and in 1840 she died in The Hague of breast cancer at the age of 47 .
As an unmarried woman , Van den Bergh lived with her mother and gave singing and piano lessons .
woman wrote a music instruction manual around 1830 to aid in this work , and in 1840 woman died in The Hague of breast cancer at the age of 47 .
As an unmarried woman , Van den Bergh lived with her mother and gave singing and piano lessons .