"Henry Hugh Pierson (12 April 1815 – 28 January 1873) was an English composer resident from 1845 in Germany. He was born Henry Hugh Pearson and ...
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his middle name is sometimes given as Hugo. His original name was Henry Hugh Pearson, in Germany he used Heinrich Hugo Pierson. He had success in his adopted country with his operas and songs but little in his own, and his music is now rarely performed." - (en.wikipedia.org 05.10.2021)