
Potentially D&D-able. This is a visualization of an early medieval palatium/palace/Pfalz of Mieszko I (10th century ruler of Poland) located on Lednica Holm. Just found it on Polish Press Agency page, accompanying news about new archaeological excavations planned in the area. Such a building would typically contain a throne room, the ruler's chambers and a castle chapel. Not really what comes to mind when you think "palace", but quite common in early medieval period.