This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Beueler Schanze. Fort de Bourgogne Dietrich Hroldt Hrsg Geschichte der Stadt Bonn Band Bonn als kurklnische Haupt und Residenzstadt Bonn Author PDold Beuel Maps of Bonn History of Bonn Sconces in North RhineWestphalia
Page 2023 Free-images.com. All images are Public Domain