Penzberg (German: [ˈpɛnt͡sˌbɛʁk] ⓘ; Central Bavarian: Benschberg) is a city (although some see it as a town) in the Weilheim-Schongau district, in Bavaria, Germany.

In order to follow Hitler's "scorched earth" policy (Nero Decree), the local Nazi leaders wanted to blow up the coal mine which was the economic life blood of the town (The End: Hitler's Germany 1944–45 by Ian Kershaw – p344), so, on 28 April 1945 Hans Rummer [de] (the social democratic mayor of Penzberg until the Nazi takeover in 1933) and others deposed the Nazi mayor.

When, on the evening of the same day, Gauleiter Paul Giesler heard about the incident, he gave orders that the leaders were to be shot immediately without trial.

During the night, a further eight suspected resistance fighters were hanged by a "drumhead court-martial" under SA brigade leader Hans Zöberlein [de].

The mine was not destroyed, and remained open until 1966 when it closed for economic reasons; the adjacent power plant was also shut down in 1971.