The Marksburg is a castle above the town of Braubach near Koblenz in Rhineland-Palatinate, Germany.
It is one of the principal sites of the Rhine Gorge UNESCO World Heritage Site. The fortress was used for protection rather than as a residence for royal families. Notable is an example of a bergfried designed as a butter-churn tower.
German Castles and Palaces
See our article: Introduction: German Castles and Palaces
and here are all our articles about Germany’s Castles and Palaces