"Adolf Heinrich Friedrich Schlichtegroll (8 December 1765 in Waltershausen – 4 December 1822 in Munich) was a teacher, scholar and the first biographer of Wolfgang Amadeus Mozart. His brief account of Mozart's life (6000 words) was published in a volume of twelve obituaries Schlichtegroll prepared and called Nekrolog auf das Jahr 1791 ("Necrology for the year 1791"). The book appeared in 1793, two years after Mozart's death." - (en.wikipedia.org 29.06.2021)
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