Eugen Bormann, Professor of Ancient History and Epigraphy at the University of Vienna from 1885 to 1914, left a great scientific legacy after his demise. Because of the private correspondence of his widow Auguste with her daughter Emma, we know details about the sale of this legacy. The legacy was bought by the textile industrialist Hugo Ritter Grab von Hermannswörth, who donated it to the German University in Prague. Some of this legacy has not yet been found. But what we have in abundance is Bormann’s correspondence in the archives of Charles University in Prague. This article will not only trace the story of the sale of the ‘Bormann papers’, it will also cast light on a few selected bundles, e.g. gifts for Bormanns 70th birthday, school certificates, letters from Otto Benndorf, Alexander Conze, Michael Rostovtzeff, or Marie von Ebner -Eschenbach. This will show what tremendous treasure slumbers for the biographical research on Eugen Bormann in the Prague archive. The author’s goal is to lift this treasure in the next few years.