My onkel Horst and cousin Steffen purchased a castle in Klevenow, Germany a few years back and have been upgrading/repairing nearly every facet of this old domain. Through this work, they both have many interesting stories about it including discoveries made and learnings about it’s rich history. Below are three pictures sent to me. The castle was originally built in the 1300’s. Hopefully they will find some time to share more about it.
More details about the area can be found here (auf Deutsch).