Background
To fulfil his father"s wishes he then studied anatomry, archaeology and drawing at the University of Vienna.
To fulfil his father"s wishes he then studied anatomry, archaeology and drawing at the University of Vienna.
A surgeon"s son, he attended the gymnasium in his home town and to the city school in Graz. In 1865 he moved to Munich, at whose Akademie der Bildenden Künste he studied under Alexander Wagner and Carl Theodor von Piloty.
In 1878 he became a professor and lecturer in drawing at the Münchner Kunstakademie, holding the position until 1919. Several artists trained by Hackl found success, though he was had no lasting success with his own work, which still occasionally appears at auction. 1880: Pius Ferdinand Messerschmitt 1884: Albin Egger-Lienz 1885: Max Slevogt 1887: Richard Riemerschmid 1888: Leo Putz 1889: Wilhelm Thöny 1890: Franz Marc 1891: Hans von Hayek 1897: Hans Purrmann 1905: Otto Obermeier 1914: Henry Ives Cobb, Junior 1891: Jahresausstellung der Genossenschaft der Bildenden Künstler Wiens und der Gesellschaft der Freunde Junger Kunst, Baden-Baden 2006: Zur Natur des Menschen.
Genremalerei des 19. und frühen 20.
Jahrhunderts, Neue Galerie am Landesmuseum Joanneum, Graz A. 416.
He was a member of the Luitpold-Gruppe, founded in 1896 as a sub-division of the Münchner Künstlergenossenschaft - the Luitpold-Gruppe also included Hugo Bürgel (its president), Walter Firle, Fritz Baer, Karl Marr, Johann Sperl and Wilhelm Leibl.