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:
Maastricht Boschpoort met avance Brabant ca . en View of the fortifications near Boschpoort the northern city gate of Maastricht Beer Monnik Avancee Drawing by Jan Brabant Morreau Bolwerk der Nederlanden Assen Jan Brabant Custom marker PDold Uploaded with Views of Maastricht by Jan Brabant Maastricht in the Second