Purtse Castle (Estonian: Purtse mõis, German: Alt-Isenhof) is a castle of the local manor Purtse in Purtse in northeastern Estonia. It was built in the mid-16th century, probably by the landowner Johann von Taube, at a time when late Gothic architecture was slowly being abandoned in favor of Renaissance ideas. The building therefore partly contains elements that were archaic even for the time and partly examples of Renaissance architecture (Wikipedia).