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:
Sandegg. Schloss Sandegg Kupferstich Format cm Matthaeus Merian Topographia Helvetiae Rhaetiae et Valesiae Frankfurt am Main Merian Helvetiae Rhaetiae et Valesiae Creator Matthus Merian before File Sandteck Merian PDold thcentury engravings Sandegg Salenstein Historical images of the canton of Thurgau Castles in the canton