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.
Keywords from Image Description:
Blaeu siege of 'sHertogenbosch trenches . en Siege of 'sHertogenbosch by Frederik Hendrik Clearly visible are the trenches towards the city defenses and fortresses nl Beleg van 'sHertogenbosch door Frederik Hendrik Duidelijk zichtbaar zijn de loopgraven richting de verdedigingswerken en de forten tudelft nl ccabed fullscreen