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Thonradel, noble family from Salzburg. There is evidence that they lived in Lower Austria as influential civil servants around 1510. The T. family owned Thernberg and Ebergassing; they were fervent Protestants. Georg Christoph T. emigrated to Germany for religious reasons in 1653 after Andreas II Thonradel had already left the country; from then on the family ceased to exist in Austria. Gravestones with the family coat of arms are to be found in the parish church of Thernberg.