Dies was born in
Hanover (baptized 11 February 1755), and began his studies there. For one year he studied in the academy of
Düsseldorf, and then he started at the age of twenty with thirty
ducats in his pocket for
Rome,
Goethe visited him in 1787. The poet, interested in the theory of color, reported in his (), "At the moment I am engaged in something from which I learn a great deal; I have found and sketched a landscape that a clever artist, Dies, colored in my presence; thus eyes and mind grow ever more accustomed to color and harmony." During the Rome visit, Dies also composed music, though later on he apparently destroyed all that he had written, and none of it survives today. the series of plates known as the ''Collection de vues pittoresques de l'Italie'', published in seventy-two sheets at
Nuremberg in 1799. According to Gotwals, "In May, 1796, Dies apparently eloped with a young girl to
Salzburg." The following year he moved to
Vienna, and lived there on the produce of his brush as a
landscape painter, and on that of his pencil or graver as a draughtsman and etcher. He also taught landscape painting at the Imperial and Royal Academy, and later, in his final post, was gallery director to Prince
Nikolaus Esterházy II. During this time his physical condition grew worse, and he even lost the use of one of his hands. ==As biographer==