"Dr Emerich Frivaldszky von Frivald (6 February 1799 in Bacskó, Hungary (now Bačkov, Trebišov District, Slovakia) – 19 October 1870 in Jobbágyi, Hungary), known as Imre Frivaldszky, was a Hungarian botanist and entomologist." - (en.wikipedia.org 31.07.2021)
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