August Eigruber joined the NSDAP in 1927. In 1930, he became head of the Hitler Youth and party leader
for the region of Steyr and, in 1931, leader for the city of Steyr.
He became leader of the then illegal NSDAP for Upper
Austria in 1936.
Immediately after the “Anschluss” in March 1938, Eigruber
became "Gauleiter" of Upper Austria and, in 1940,
“Reichsstatthalter” for “Oberdonau” of which
Linz was the capital.
Eigruber was a particularly enthusiastic Nazi. He was on good terms
with Hitler and Bormann and was successful in asserting his ideas about the rebuilding of Linz
over the head of the official architect Roderich Fick.
Eigruber also helped establish Mauthausen.
He was subsequently charged and convicted for war
crimes committed at the camp. He was hanged on May 28, 1947, in
the yard of Landsberg prison.